diff --git a/apps/platform/app/Filament/Pages/ChooseTenant.php b/apps/platform/app/Filament/Pages/ChooseTenant.php
index e4ab5a35..28921db3 100644
--- a/apps/platform/app/Filament/Pages/ChooseTenant.php
+++ b/apps/platform/app/Filament/Pages/ChooseTenant.php
@@ -27,10 +27,13 @@ class ChooseTenant extends Page
 
     protected static ?string $slug = 'choose-tenant';
 
-    protected static ?string $title = 'Choose tenant';
-
     protected string $view = 'filament.pages.choose-tenant';
 
+    public function getTitle(): string
+    {
+        return __('localization.shell.choose_environment');
+    }
+
     /**
      * Disable the simple-layout topbar to prevent lazy-loaded
      * DatabaseNotifications from triggering Livewire update 404s.
diff --git a/apps/platform/app/Filament/Pages/Monitoring/Operations.php b/apps/platform/app/Filament/Pages/Monitoring/Operations.php
index c4b16aa5..4f24635f 100644
--- a/apps/platform/app/Filament/Pages/Monitoring/Operations.php
+++ b/apps/platform/app/Filament/Pages/Monitoring/Operations.php
@@ -209,7 +209,7 @@ protected function getHeaderActions(): array
 
         if ($activeTenant instanceof ManagedEnvironment) {
             $actions[] = Action::make('operate_hub_show_all_tenants')
-                ->label('Show all tenants')
+                ->label(__('localization.shell.show_all_environments'))
                 ->color('gray')
                 ->action(function (): void {
                     Filament::setTenant(null, true);
@@ -256,13 +256,13 @@ public function landingHierarchySummary(): array
         return [
             'scope_label' => $operateHubShell->scopeLabel(request()),
             'scope_body' => $activeTenant instanceof ManagedEnvironment
-                ? 'The landing is currently narrowed to one tenant inside the active workspace.'
-                : 'The landing is currently showing workspace-wide monitoring across all entitled tenants.',
+                ? 'The landing is currently narrowed to one environment inside the active workspace.'
+                : 'The landing is currently showing workspace-wide monitoring across all entitled environments.',
             'return_label' => $returnLabel,
             'return_body' => $returnBody,
-            'scope_reset_label' => $activeTenant instanceof ManagedEnvironment ? 'Show all tenants' : null,
+            'scope_reset_label' => $activeTenant instanceof ManagedEnvironment ? __('localization.shell.show_all_environments') : null,
             'scope_reset_body' => $activeTenant instanceof ManagedEnvironment
-                ? 'Reset the landing back to workspace-wide monitoring when tenant-specific context is no longer needed.'
+                ? 'Reset the landing back to workspace-wide monitoring when environment-specific context is no longer needed.'
                 : null,
             'inspect_body' => 'Open a run from the table to enter the canonical monitoring detail viewer.',
         ];
diff --git a/apps/platform/app/Filament/Pages/Operations/TenantlessOperationRunViewer.php b/apps/platform/app/Filament/Pages/Operations/TenantlessOperationRunViewer.php
index ee166bcb..9c1cab9b 100644
--- a/apps/platform/app/Filament/Pages/Operations/TenantlessOperationRunViewer.php
+++ b/apps/platform/app/Filament/Pages/Operations/TenantlessOperationRunViewer.php
@@ -734,25 +734,25 @@ public function canonicalContextBanner(): ?array
                 'tone' => 'slate',
                 'title' => 'Workspace-level operation',
                 'body' => $activeTenant instanceof ManagedEnvironment
-                    ? 'This canonical workspace view is not tied to the current tenant context ('.$activeTenant->name.').'
-                    : 'This canonical workspace view is not tied to any tenant.',
+                    ? 'This canonical workspace view is not tied to the current environment context ('.$activeTenant->name.').'
+                    : 'This canonical workspace view is not tied to any environment.',
             ];
         }
 
-        $messages = ['Operation tenant: '.$runTenant->name.'.'];
+        $messages = ['Operation environment: '.$runTenant->name.'.'];
         $tone = 'sky';
         $title = null;
 
         if ($activeTenant instanceof ManagedEnvironment && ! $activeTenant->is($runTenant)) {
-            $title = 'Current tenant context differs from this operation';
-            array_unshift($messages, 'Current tenant context: '.$activeTenant->name.'.');
-            $messages[] = 'This canonical workspace view remains valid without switching tenant context.';
+            $title = 'Current environment context differs from this operation';
+            array_unshift($messages, 'Current environment context: '.$activeTenant->name.'.');
+            $messages[] = 'This canonical workspace view remains valid without switching environment context.';
         }
 
         $referencedTenant = ReferencedTenantLifecyclePresentation::forOperationRun($runTenant);
 
         if ($selectorAvailabilityMessage = $referencedTenant->selectorAvailabilityMessage()) {
-            $title ??= 'Operation tenant is not available in the current tenant selector';
+            $title ??= 'Operation environment is not available in the current environment selector';
             $tone = 'amber';
             $messages[] = $selectorAvailabilityMessage;
 
@@ -761,7 +761,7 @@ public function canonicalContextBanner(): ?array
             }
         } elseif (! $activeTenant instanceof ManagedEnvironment) {
             $title ??= 'Canonical workspace view';
-            $messages[] = 'No tenant context is currently selected.';
+            $messages[] = 'No environment context is currently selected.';
         }
 
         if ($title === null) {
diff --git a/apps/platform/app/Filament/Pages/TenantDashboard.php b/apps/platform/app/Filament/Pages/TenantDashboard.php
index 4909eec8..bbca2306 100644
--- a/apps/platform/app/Filament/Pages/TenantDashboard.php
+++ b/apps/platform/app/Filament/Pages/TenantDashboard.php
@@ -56,7 +56,7 @@ class TenantDashboard extends Dashboard
 
     public static function getNavigationLabel(): string
     {
-        return __('localization.dashboard.tenant_title');
+        return __('localization.dashboard.environment_title');
     }
 
     public function getTitle(): string | Htmlable
@@ -64,7 +64,7 @@ public function getTitle(): string | Htmlable
         $tenant = Filament::getTenant();
 
         if (! $tenant instanceof ManagedEnvironment) {
-            return __('localization.dashboard.tenant_title');
+            return __('localization.dashboard.environment_title');
         }
 
         $summary = $this->dashboardSummary();
diff --git a/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php b/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php
index ee1caf14..8705fab1 100644
--- a/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php
+++ b/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php
@@ -25,12 +25,15 @@ class ManagedTenantsLanding extends Page
 
     protected static string $layout = 'filament-panels::components.layout.simple';
 
-    protected static ?string $title = 'Managed tenants';
-
     protected string $view = 'filament.pages.workspaces.managed-tenants-landing';
 
     public Workspace $workspace;
 
+    public function getTitle(): string
+    {
+        return __('localization.shell.managed_environments_title');
+    }
+
     /**
      * The Filament simple layout renders the topbar by default, which includes
      * lazy-loaded database notifications. On this workspace-scoped landing page,
diff --git a/apps/platform/app/Filament/Widgets/Dashboard/TenantDashboardContextChips.php b/apps/platform/app/Filament/Widgets/Dashboard/TenantDashboardContextChips.php
index 4e6e3493..d06bcea8 100644
--- a/apps/platform/app/Filament/Widgets/Dashboard/TenantDashboardContextChips.php
+++ b/apps/platform/app/Filament/Widgets/Dashboard/TenantDashboardContextChips.php
@@ -28,7 +28,7 @@ protected function getViewData(): array
             return [
                 'context' => [
                     'workspace' => __('localization.dashboard.overview.context_workspace'),
-                    'tenant' => __('localization.dashboard.overview.context_no_tenant'),
+                    'tenant' => __('localization.dashboard.overview.context_no_environment'),
                     'provider' => null,
                     'providerKey' => null,
                     'latestActivity' => null,
diff --git a/apps/platform/app/Services/Tenants/TenantActionPolicySurface.php b/apps/platform/app/Services/Tenants/TenantActionPolicySurface.php
index 9562d56e..87819234 100644
--- a/apps/platform/app/Services/Tenants/TenantActionPolicySurface.php
+++ b/apps/platform/app/Services/Tenants/TenantActionPolicySurface.php
@@ -123,7 +123,7 @@ public function onboardingEntryDescriptor(int $resumableDraftCount): TenantActio
             default => new TenantActionDescriptor(
                 key: 'add_tenant',
                 family: TenantActionFamily::OnboardingWorkflow,
-                label: 'Add tenant',
+                label: 'Add environment',
                 icon: 'heroicon-m-plus',
                 group: 'primary',
             ),
diff --git a/apps/platform/app/Support/Baselines/BaselineCompareStats.php b/apps/platform/app/Support/Baselines/BaselineCompareStats.php
index ccf4a829..c9a931ba 100644
--- a/apps/platform/app/Support/Baselines/BaselineCompareStats.php
+++ b/apps/platform/app/Support/Baselines/BaselineCompareStats.php
@@ -105,7 +105,7 @@ public static function forTenant(?ManagedEnvironment $tenant): self
         if (! $assignment instanceof BaselineTenantAssignment) {
             return self::empty(
                 'no_assignment',
-                'This tenant has no baseline assignment. A workspace manager can assign a baseline profile to this tenant.',
+                'This environment has no baseline assignment. A workspace manager can assign a baseline profile to this environment.',
                 findingAttentionCounts: $findingAttentionCounts,
             );
         }
diff --git a/apps/platform/app/Support/Baselines/BaselineCompareSummaryAssessor.php b/apps/platform/app/Support/Baselines/BaselineCompareSummaryAssessor.php
index 4fa87508..83363f65 100644
--- a/apps/platform/app/Support/Baselines/BaselineCompareSummaryAssessor.php
+++ b/apps/platform/app/Support/Baselines/BaselineCompareSummaryAssessor.php
@@ -242,7 +242,7 @@ private function headline(
             },
             BaselineCompareSummaryAssessment::STATE_IN_PROGRESS => 'Baseline compare is in progress.',
             default => match ($stats->state) {
-                'no_assignment' => 'This tenant does not have an assigned baseline yet.',
+                'no_assignment' => 'This environment does not have an assigned baseline yet.',
                 'no_snapshot' => 'The current baseline snapshot is not available for compare.',
                 'idle' => 'A current baseline compare result is not available yet.',
                 default => 'A usable baseline compare result is not currently available.',
diff --git a/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php b/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php
index 919da6f4..0ba51b9c 100644
--- a/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php
+++ b/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php
@@ -104,7 +104,7 @@ public static function forTenantRegistry(string $backLinkUrl, ?int $tenantId = n
             sourceSurface: 'tenant_registry',
             canonicalRouteName: ListTenants::getRouteName(Filament::getPanel('admin')),
             tenantId: $tenantId,
-            backLinkLabel: 'Back to tenant registry',
+            backLinkLabel: __('localization.shell.back_to_environment_registry'),
             backLinkUrl: $backLinkUrl,
         );
     }
diff --git a/apps/platform/app/Support/OperateHub/OperateHubShell.php b/apps/platform/app/Support/OperateHub/OperateHubShell.php
index d4426e56..d91d5dc6 100644
--- a/apps/platform/app/Support/OperateHub/OperateHubShell.php
+++ b/apps/platform/app/Support/OperateHub/OperateHubShell.php
@@ -32,10 +32,10 @@ public function scopeLabel(?Request $request = null): string
         $activeTenant = $this->activeEntitledTenant($request);
 
         if ($activeTenant instanceof ManagedEnvironment) {
-            return 'ManagedEnvironment scope: '.$activeTenant->name;
+            return __('localization.shell.environment_scope').': '.$activeTenant->name;
         }
 
-        return 'All tenants';
+        return __('localization.shell.all_environments');
     }
 
     /**
diff --git a/apps/platform/app/Support/Tenants/TenantLifecyclePresentation.php b/apps/platform/app/Support/Tenants/TenantLifecyclePresentation.php
index 217c65ac..b9beaa7d 100644
--- a/apps/platform/app/Support/Tenants/TenantLifecyclePresentation.php
+++ b/apps/platform/app/Support/Tenants/TenantLifecyclePresentation.php
@@ -62,7 +62,7 @@ public static function forLifecycle(TenantLifecycle $lifecycle): self
                 badgeIcon: 'heroicon-m-arrow-path',
                 badgeIconColor: null,
                 shortDescription: 'Onboarding is in progress.',
-                longDescription: 'This tenant is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.',
+                longDescription: 'This environment is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.',
                 isInvalidFallback: false,
                 lifecycle: $lifecycle,
             ),
@@ -72,8 +72,8 @@ public static function forLifecycle(TenantLifecycle $lifecycle): self
                 badgeColor: 'success',
                 badgeIcon: 'heroicon-m-check-circle',
                 badgeIconColor: null,
-                shortDescription: 'Active tenant available for normal operations.',
-                longDescription: 'This tenant is active and available across normal management, tenant selection, and operational follow-up flows.',
+                shortDescription: 'Active environment available for normal operations.',
+                longDescription: 'This environment is active and available across normal management, environment selection, and operational follow-up flows.',
                 isInvalidFallback: false,
                 lifecycle: $lifecycle,
             ),
@@ -83,8 +83,8 @@ public static function forLifecycle(TenantLifecycle $lifecycle): self
                 badgeColor: 'gray',
                 badgeIcon: 'heroicon-m-archive-box',
                 badgeIconColor: null,
-                shortDescription: 'Archived tenant retained for inspection only.',
-                longDescription: 'This tenant remains available for inspection and audit history, but it is not selectable as active context until you restore it.',
+                shortDescription: 'Archived environment retained for inspection only.',
+                longDescription: 'This environment remains available for inspection and audit history, but it is not selectable as active context until you restore it.',
                 isInvalidFallback: false,
                 lifecycle: $lifecycle,
             ),
diff --git a/apps/platform/app/Support/Workspaces/WorkspaceOverviewBuilder.php b/apps/platform/app/Support/Workspaces/WorkspaceOverviewBuilder.php
index 91fbf803..9c15c2e3 100644
--- a/apps/platform/app/Support/Workspaces/WorkspaceOverviewBuilder.php
+++ b/apps/platform/app/Support/Workspaces/WorkspaceOverviewBuilder.php
@@ -135,7 +135,7 @@ public function build(Workspace $workspace, User $user): array
         $attentionEmptyState = [
             'title' => $calmness['title'],
             'body' => $calmness['body'],
-            'action_label' => $calmness['next_action']['label'] ?? 'Choose tenant',
+            'action_label' => $calmness['next_action']['label'] ?? __('localization.shell.choose_environment'),
             'action_url' => $calmness['next_action']['url'] ?? ChooseTenant::getUrl(panel: 'admin'),
         ];
 
@@ -993,7 +993,7 @@ private function summaryMetrics(
                 value: $accessibleTenantCount,
                 category: 'scope',
                 description: $accessibleTenantCount > 0
-                    ? 'ManagedEnvironment drill-down stays explicit from this workspace home.'
+                    ? 'Environment drill-down stays explicit from this workspace home.'
                     : 'No managed environments are available in this workspace yet.',
                 color: $accessibleTenantCount > 0 ? 'primary' : 'warning',
                 destination: $accessibleTenantCount > 0
@@ -1008,7 +1008,7 @@ private function summaryMetrics(
                 description: 'Affected visible tenants with overdue findings, governance expiry, lapsed governance, or compare posture that needs review.',
                 color: $governanceAttentionTenantCount > 0 ? 'danger' : 'gray',
                 destination: $governanceAttentionTenantCount > 0
-                    ? $this->chooseTenantTarget('Choose tenant')
+                    ? $this->chooseTenantTarget(__('localization.shell.choose_environment'))
                     : null,
             ),
             $this->makeSummaryMetric(
@@ -1272,15 +1272,15 @@ private function attentionMetricDestination(array $tenantContexts, User $user, s
                         TenantBackupHealthAssessment::POSTURE_DEGRADED,
                     ],
                     'triage_sort' => TenantRecoveryTriagePresentation::TRIAGE_SORT_WORST_FIRST,
-                ], 'Choose tenant'),
+                ], __('localization.shell.choose_environment')),
                 'has_recovery_attention' => $this->filteredTenantRegistryTarget([
                     'recovery_evidence' => [
                         TenantRecoveryTriagePresentation::RECOVERY_EVIDENCE_WEAKENED,
                         TenantRecoveryTriagePresentation::RECOVERY_EVIDENCE_UNVALIDATED,
                     ],
                     'triage_sort' => TenantRecoveryTriagePresentation::TRIAGE_SORT_WORST_FIRST,
-                ], 'Choose tenant'),
-                default => $this->chooseTenantTarget('Choose tenant'),
+                ], __('localization.shell.choose_environment')),
+                default => $this->chooseTenantTarget(__('localization.shell.choose_environment')),
             };
         }
 
@@ -1451,8 +1451,8 @@ private function quickActions(
         $actions = [
             [
                 'key' => 'choose_tenant',
-                'label' => 'Choose tenant',
-                'description' => 'Deliberately enter tenant context from this workspace.',
+                'label' => __('localization.shell.choose_environment'),
+                'description' => 'Deliberately enter environment context from this workspace.',
                 'url' => ChooseTenant::getUrl(panel: 'admin'),
                 'icon' => 'heroicon-o-building-office-2',
                 'color' => 'primary',
@@ -1529,12 +1529,12 @@ private function tenantRouteKey(ManagedEnvironment $tenant): string
     /**
      * @return array<string, mixed>
      */
-    private function chooseTenantTarget(string $label = 'Choose tenant'): array
+    private function chooseTenantTarget(?string $label = null): array
     {
         return $this->destination(
             kind: 'choose_tenant',
             url: ChooseTenant::getUrl(panel: 'admin'),
-            label: $label,
+            label: $label ?? __('localization.shell.choose_environment'),
         );
     }
 
@@ -1542,12 +1542,12 @@ private function chooseTenantTarget(string $label = 'Choose tenant'): array
      * @param  array<string, mixed>  $filters
      * @return array<string, mixed>
      */
-    private function filteredTenantRegistryTarget(array $filters, string $label = 'Choose tenant'): array
+    private function filteredTenantRegistryTarget(array $filters, ?string $label = null): array
     {
         return $this->destination(
             kind: 'choose_tenant',
             url: $this->appendQuery(TenantResource::getUrl(panel: 'admin'), $filters),
-            label: $label,
+            label: $label ?? __('localization.shell.choose_environment'),
             filters: $filters,
         );
     }
diff --git a/apps/platform/lang/de/baseline-compare.php b/apps/platform/lang/de/baseline-compare.php
index bbc2dfd7..45a88639 100644
--- a/apps/platform/lang/de/baseline-compare.php
+++ b/apps/platform/lang/de/baseline-compare.php
@@ -69,7 +69,7 @@
     'empty_no_assignment' => 'Keine Baseline zugewiesen',
     'empty_no_snapshot' => 'Kein Snapshot verfügbar',
     'findings_description' => 'Die Tenant-Konfiguration weicht vom Baseline-Profil ab.',
-    'rbac_summary_title' => 'Intune-RBAC-Rollendefinitionen',
+    'rbac_summary_title' => 'RBAC-Rollendefinitionen',
     'rbac_summary_description' => 'Rollenzuweisungen sind in diesem Baseline-Compare-Release nicht enthalten.',
     'rbac_summary_compared' => 'Verglichen',
     'rbac_summary_unchanged' => 'Unverändert',
diff --git a/apps/platform/lang/de/localization.php b/apps/platform/lang/de/localization.php
index 67d579a1..1854e19b 100644
--- a/apps/platform/lang/de/localization.php
+++ b/apps/platform/lang/de/localization.php
@@ -28,6 +28,23 @@
         'choose_workspace' => 'Workspace auswählen',
         'switch_workspace' => 'Workspace wechseln',
         'workspace_home' => 'Workspace-Start',
+        'choose_environment' => 'Umgebung auswählen',
+        'environment_count' => ':count Umgebung|:count Umgebungen',
+        'choose_environment_description' => 'Wählen Sie die Umgebung für Ihren normalen aktiven Betriebskontext aus.',
+        'workspace_wide_available_without_environment' => 'Keine Umgebung ausgewählt. Workspace-weite Seiten wie Operationen und Managed Environments bleiben verfügbar.',
+        'add_environment' => 'Umgebung hinzufügen',
+        'all_environments' => 'Alle Umgebungen',
+        'show_all_environments' => 'Alle Umgebungen anzeigen',
+        'managed_environments_title' => 'Managed Environments',
+        'no_managed_environments_yet' => 'Noch keine Managed Environments',
+        'managed_environments_empty_state_description' => 'Fügen Sie Ihre erste Managed Environment hinzu, um Inventar, Backups, Drift-Erkennung und Richtlinien zu verwalten.',
+        'environment_scope' => 'Umgebungskontext',
+        'select_environment' => 'Umgebung auswählen',
+        'selected_environment' => 'Ausgewählte Umgebung',
+        'no_environment_selected' => 'Keine Umgebung ausgewählt',
+        'switch_environment' => 'Umgebung wechseln',
+        'clear_environment_scope' => 'Umgebungskontext löschen',
+        'back_to_environment_registry' => 'Zur Umgebungsregistrierung zurück',
         'tenant_scope' => 'Tenant-Kontext',
         'select_tenant' => 'Tenant auswählen',
         'selected_tenant' => 'Ausgewählter Tenant',
@@ -37,9 +54,13 @@
         'context_unavailable' => 'Kontext nicht verfügbar',
         'context_unavailable_workspace' => 'Der angeforderte Kontext konnte nicht wiederhergestellt werden. Die Shell zeigt stattdessen einen gültigen Workspace-Kontext.',
         'context_unavailable_no_workspace' => 'Wählen Sie einen Workspace aus, um mit einem gültigen Admin-Kontext fortzufahren.',
+        'no_active_environments' => 'Keine aktiven Umgebungen verfügbar',
+        'no_active_environments_description' => 'In diesem Workspace sind keine auswählbaren aktiven Umgebungen für den normalen Betriebskontext verfügbar. Workspace-weite Seiten funktionieren weiterhin ohne ausgewählte Umgebung, und Sie können Onboarding- oder archivierte Einträge über Managed Environments prüfen.',
+        'view_managed_environments' => 'Managed Environments anzeigen',
         'no_active_tenants' => 'In diesem Workspace sind keine aktiven Tenants für den Standardbetrieb verfügbar.',
         'view_managed_tenants' => 'Managed Tenants anzeigen',
         'workspace_wide_available' => 'Kein Tenant ausgewählt. Workspace-weite Seiten bleiben verfügbar; ein Tenant setzt nur den normalen aktiven Betriebskontext.',
+        'search_environments' => 'Umgebungen suchen...',
         'search_tenants' => 'Tenants suchen...',
         'choose_workspace_first' => 'Wählen Sie zuerst einen Workspace aus.',
     ],
@@ -76,6 +97,7 @@
     ],
     'dashboard' => [
         'tenant_title' => 'Tenant-Dashboard',
+        'environment_title' => 'Umgebungs-Dashboard',
         'system_title' => 'System-Dashboard',
         'more_actions' => 'Mehr',
         'request_support' => 'Support anfragen',
@@ -126,11 +148,12 @@
         'recovery_mode_enabled' => 'Wiederherstellungsmodus aktiviert',
         'recovery_mode_ended' => 'Wiederherstellungsmodus beendet',
         'overview' => [
-            'page_subheading' => 'Tenant-Governance-Übersicht',
+            'page_subheading' => 'Umgebungs-Governance-Übersicht',
             'context_workspace' => 'Aktueller Workspace',
             'context_no_tenant' => 'Kein Tenant ausgewählt',
+            'context_no_environment' => 'Keine Umgebung ausgewählt',
             'context_workspace_chip' => 'Workspace: :workspace',
-            'context_provider_chip' => ':provider-Tenant',
+            'context_provider_chip' => ':provider-Umgebung',
             'context_latest_activity_chip' => 'Letzte Aktivität: :time',
             'status_unavailable' => 'Nicht verfügbar',
             'status_blocked' => 'Blockiert',
@@ -141,6 +164,8 @@
             'status_needs_action' => 'Aufmerksamkeit erforderlich',
             'tenant_context_unavailable_headline' => 'Tenant-Kontext ist nicht verfügbar.',
             'tenant_context_unavailable_summary' => 'Wählen Sie einen Tenant aus, um die entscheidungsorientierte Dashboard-Übersicht anzuzeigen.',
+            'environment_context_unavailable_headline' => 'Umgebungskontext ist nicht verfügbar.',
+            'environment_context_unavailable_summary' => 'Wählen Sie eine Umgebung aus, um die entscheidungsorientierte Dashboard-Übersicht anzuzeigen.',
             'posture_blocked_headline' => 'Provider-Berechtigungen blockieren Tenant-Workflows.',
             'posture_blocked_summary' => 'Erforderliche Anwendungsberechtigungen fehlen. Provider-gestützte Abläufe können deshalb nicht als bereit bewertet werden.',
             'posture_calm_headline' => 'Kein unmittelbarer Tenant-Blocker ist sichtbar.',
@@ -539,11 +564,11 @@
             'sync_action_primary' => 'Richtlinien synchronisieren',
             'sync_action_secondary' => 'Synchronisieren',
             'sync_modal_heading' => 'Richtlinien-Inventar synchronisieren',
-            'sync_modal_description' => 'Diese Aktion reiht eine Hintergrundssynchronisierung für unterstützte Richtlinientypen im aktuellen Tenant ein.',
+            'sync_modal_description' => 'Diese Aktion reiht eine Hintergrundssynchronisierung für unterstützte Richtlinientypen in der aktuellen Umgebung ein.',
             'sync_permission_tooltip' => 'Sie haben keine Berechtigung, Richtlinien zu synchronisieren.',
             'capture_snapshot_action' => 'Snapshot erfassen',
             'capture_snapshot_modal_heading' => 'Snapshot jetzt erfassen',
-            'capture_snapshot_modal_subheading' => 'Diese Aktion reiht einen Hintergrundjob ein, der die aktuelle Konfiguration aus Microsoft Graph abruft und eine neue Richtlinienversion speichert.',
+            'capture_snapshot_modal_subheading' => 'Diese Aktion reiht einen Hintergrundjob ein, der die aktuelle Konfiguration für die aktuelle Umgebung erfasst und eine neue Richtlinienversion speichert.',
             'capture_snapshot_include_assignments' => 'Zuweisungen einschließen',
             'capture_snapshot_include_assignments_helper' => 'Erfasst Include-/Exclude-Ziele und Filter für Zuweisungen.',
             'capture_snapshot_include_scope_tags' => 'Scope-Tags einschließen',
@@ -593,7 +618,7 @@
             'ignore_permission_tooltip' => 'Sie haben keine Berechtigung, Richtlinien zu ignorieren.',
             'policy_ignored' => 'Richtlinie ignoriert',
             'empty_state_heading' => 'Noch keine Richtlinien im Inventory',
-            'empty_state_description' => 'Starte eine Synchronisierung, um das Richtlinien-Inventar dieses Tenants mit Versionen, Wiederherstellbarkeit und Governance-Evidence aufzubauen.',
+            'empty_state_description' => 'Starte eine Synchronisierung, um das Richtlinien-Inventar dieser Umgebung mit Versionen, Wiederherstellbarkeit und Governance-Evidence aufzubauen.',
             'delete_queued_body' => 'Löschung für :count Richtlinien eingeplant.',
         ],
         'versions' => [
@@ -640,7 +665,7 @@
             'metadata_only_tooltip' => 'Für reine Metadaten-Snapshots deaktiviert (Graph hat keine Richtlinieneinstellungen geliefert).',
             'restore_disabled_metadata_title' => 'Wiederherstellung für reinen Metadaten-Snapshot deaktiviert',
             'restore_disabled_metadata_body' => 'Dieser Snapshot enthält nur Metadaten; Graph hat keine Richtlinieneinstellungen für eine Wiederherstellung geliefert.',
-            'different_tenant_title' => 'Richtlinienversion gehört zu einem anderen Tenant',
+            'different_tenant_title' => 'Richtlinienversion gehört zu einer anderen Umgebung',
             'missing_policy_title' => 'Richtlinie für diese Version konnte nicht gefunden werden',
             'backup_set_name' => 'Richtlinienversions-Wiederherstellung - :policy - v:version',
             'archive' => 'Archivieren',
@@ -666,9 +691,9 @@
             'fallback_display_name' => 'Version :version',
         ],
         'relation' => [
-            'restore_to_microsoft_intune' => 'In Microsoft Intune wiederherstellen',
-            'restore_heading' => 'Version :version in Microsoft Intune wiederherstellen?',
-            'restore_subheading' => 'Erstellt einen Wiederherstellungslauf mit diesem Richtlinienversions-Snapshot.',
+            'restore_to_microsoft_intune' => 'In die Umgebung wiederherstellen',
+            'restore_heading' => 'Version :version in die Umgebung wiederherstellen?',
+            'restore_subheading' => 'Erstellt einen Wiederherstellungslauf für die aktuelle Umgebung mit diesem Richtlinienversions-Snapshot.',
             'missing_context_title' => 'Tenant- oder Benutzerkontext fehlt.',
             'restore_run_failed_title' => 'Wiederherstellungslauf konnte nicht gestartet werden',
             'restore_run_started_title' => 'Wiederherstellungslauf gestartet',
diff --git a/apps/platform/lang/en/baseline-compare.php b/apps/platform/lang/en/baseline-compare.php
index 84036374..ff54b1e5 100644
--- a/apps/platform/lang/en/baseline-compare.php
+++ b/apps/platform/lang/en/baseline-compare.php
@@ -95,7 +95,7 @@
 
     // Findings section
     'findings_description' => 'The tenant configuration drifted from the baseline profile.',
-    'rbac_summary_title' => 'Intune RBAC Role Definitions',
+    'rbac_summary_title' => 'RBAC role definitions',
     'rbac_summary_description' => 'Role Assignments are not included in this baseline compare release.',
     'rbac_summary_compared' => 'Compared',
     'rbac_summary_unchanged' => 'Unchanged',
diff --git a/apps/platform/lang/en/localization.php b/apps/platform/lang/en/localization.php
index c4f43eca..d0950a89 100644
--- a/apps/platform/lang/en/localization.php
+++ b/apps/platform/lang/en/localization.php
@@ -28,6 +28,23 @@
         'choose_workspace' => 'Choose workspace',
         'switch_workspace' => 'Switch workspace',
         'workspace_home' => 'Workspace Home',
+        'choose_environment' => 'Choose environment',
+        'environment_count' => ':count environment|:count environments',
+        'choose_environment_description' => 'Select the environment for your normal active operating context.',
+        'workspace_wide_available_without_environment' => 'No environment selected is still a valid workspace state on workspace-wide pages such as operations and managed environments.',
+        'add_environment' => 'Add environment',
+        'all_environments' => 'All environments',
+        'show_all_environments' => 'Show all environments',
+        'managed_environments_title' => 'Managed environments',
+        'no_managed_environments_yet' => 'No managed environments yet',
+        'managed_environments_empty_state_description' => 'Add your first managed environment to start managing inventory, backups, drift detection, and policies.',
+        'environment_scope' => 'Environment scope',
+        'select_environment' => 'Select environment',
+        'selected_environment' => 'Selected environment',
+        'no_environment_selected' => 'No environment selected',
+        'switch_environment' => 'Switch environment',
+        'clear_environment_scope' => 'Clear environment scope',
+        'back_to_environment_registry' => 'Back to environment registry',
         'tenant_scope' => 'Tenant scope',
         'select_tenant' => 'Select tenant',
         'selected_tenant' => 'Selected tenant',
@@ -37,9 +54,13 @@
         'context_unavailable' => 'Context unavailable',
         'context_unavailable_workspace' => 'The requested scope could not be restored. The shell is showing a valid workspace state instead.',
         'context_unavailable_no_workspace' => 'Choose a workspace to continue with a valid admin context.',
+        'no_active_environments' => 'No active environments available',
+        'no_active_environments_description' => 'There are no selectable active environments for the normal operating context in this workspace. Workspace-level pages still work with no environment selected, and you can inspect onboarding or archived records through managed environments.',
+        'view_managed_environments' => 'View managed environments',
         'no_active_tenants' => 'No active tenants are available for the standard operating context in this workspace.',
         'view_managed_tenants' => 'View managed tenants',
         'workspace_wide_available' => 'No tenant selected. Workspace-wide pages remain available, and choosing a tenant only sets the normal active operating context.',
+        'search_environments' => 'Search environments...',
         'search_tenants' => 'Search tenants...',
         'choose_workspace_first' => 'Choose a workspace first.',
     ],
@@ -76,6 +97,7 @@
     ],
     'dashboard' => [
         'tenant_title' => 'Tenant dashboard',
+        'environment_title' => 'Environment dashboard',
         'system_title' => 'System dashboard',
         'more_actions' => 'More',
         'request_support' => 'Request support',
@@ -126,11 +148,12 @@
         'recovery_mode_enabled' => 'Recovery mode enabled',
         'recovery_mode_ended' => 'Recovery mode ended',
         'overview' => [
-            'page_subheading' => 'Tenant governance overview',
+            'page_subheading' => 'Environment governance overview',
             'context_workspace' => 'Current workspace',
             'context_no_tenant' => 'No tenant selected',
+            'context_no_environment' => 'No environment selected',
             'context_workspace_chip' => 'Workspace: :workspace',
-            'context_provider_chip' => ':provider tenant',
+            'context_provider_chip' => ':provider environment',
             'context_latest_activity_chip' => 'Latest activity: :time',
             'status_unavailable' => 'Unavailable',
             'status_blocked' => 'Blocked',
@@ -141,6 +164,8 @@
             'status_needs_action' => 'Needs attention',
             'tenant_context_unavailable_headline' => 'Tenant context is not available.',
             'tenant_context_unavailable_summary' => 'Select a tenant to view the decision-first dashboard overview.',
+            'environment_context_unavailable_headline' => 'Environment context is not available.',
+            'environment_context_unavailable_summary' => 'Select an environment to view the decision-first dashboard overview.',
             'posture_blocked_headline' => 'Provider permissions are blocking tenant workflows.',
             'posture_blocked_summary' => 'Required application permissions are missing, so provider-backed operations cannot be treated as healthy readiness.',
             'posture_calm_headline' => 'No immediate tenant blocker is visible.',
@@ -539,11 +564,11 @@
             'sync_action_primary' => 'Sync policies',
             'sync_action_secondary' => 'Sync',
             'sync_modal_heading' => 'Sync policy inventory',
-            'sync_modal_description' => 'This queues a background sync operation for supported policy types in the current tenant.',
+            'sync_modal_description' => 'This queues a background sync operation for supported policy types in the current environment.',
             'sync_permission_tooltip' => 'You do not have permission to sync policies.',
             'capture_snapshot_action' => 'Capture snapshot',
             'capture_snapshot_modal_heading' => 'Capture snapshot now',
-            'capture_snapshot_modal_subheading' => 'This queues a background job that fetches the latest configuration from Microsoft Graph and stores a new policy version.',
+            'capture_snapshot_modal_subheading' => 'This queues a background job that captures the latest configuration for the current environment and stores a new policy version.',
             'capture_snapshot_include_assignments' => 'Include assignments',
             'capture_snapshot_include_assignments_helper' => 'Captures assignment include/exclude targeting and filters.',
             'capture_snapshot_include_scope_tags' => 'Include scope tags',
@@ -593,7 +618,7 @@
             'ignore_permission_tooltip' => 'You do not have permission to ignore policies.',
             'policy_ignored' => 'Policy ignored',
             'empty_state_heading' => 'No policies in inventory yet',
-            'empty_state_description' => 'Run a sync to build this tenant\'s policy inventory, including versions, restore readiness, and governance evidence.',
+            'empty_state_description' => 'Run a sync to build this environment\'s policy inventory, including versions, restore readiness, and governance evidence.',
             'delete_queued_body' => 'Queued deletion for :count policies.',
         ],
         'versions' => [
@@ -640,7 +665,7 @@
             'metadata_only_tooltip' => 'Disabled for metadata-only snapshots (Graph did not provide policy settings).',
             'restore_disabled_metadata_title' => 'Restore disabled for metadata-only snapshot',
             'restore_disabled_metadata_body' => 'This snapshot only contains metadata; Graph did not provide policy settings to restore.',
-            'different_tenant_title' => 'Policy version belongs to a different tenant',
+            'different_tenant_title' => 'Policy version belongs to a different environment',
             'missing_policy_title' => 'Policy could not be found for this version',
             'backup_set_name' => 'Policy version restore - :policy - v:version',
             'archive' => 'Archive',
@@ -666,9 +691,9 @@
             'fallback_display_name' => 'Version :version',
         ],
         'relation' => [
-            'restore_to_microsoft_intune' => 'Restore to Microsoft Intune',
-            'restore_heading' => 'Restore version :version to Microsoft Intune?',
-            'restore_subheading' => 'Creates a restore run using this policy version snapshot.',
+            'restore_to_microsoft_intune' => 'Restore to environment',
+            'restore_heading' => 'Restore version :version to environment?',
+            'restore_subheading' => 'Creates a restore run for the current environment using this policy version snapshot.',
             'missing_context_title' => 'Missing tenant or user context.',
             'restore_run_failed_title' => 'Restore run failed to start',
             'restore_run_started_title' => 'Restore run started',
diff --git a/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php b/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php
index d8d3ee33..f6a4922f 100644
--- a/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php
+++ b/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php
@@ -33,7 +33,7 @@
         <x-filament::section>
             <div class="flex flex-col gap-3 sm:flex-row sm:items-center sm:justify-between">
                 <div class="text-sm text-gray-600 dark:text-gray-300">
-                    Launch the compare matrix with the currently known baseline profile and any carried subject focus from this tenant landing.
+                    Launch the compare matrix with the currently known baseline profile and any carried subject focus from this environment landing.
                 </div>
 
                 <x-filament::button tag="a" :href="$openCompareMatrixUrl" color="gray" icon="heroicon-o-squares-2x2">
diff --git a/apps/platform/resources/views/filament/pages/choose-tenant.blade.php b/apps/platform/resources/views/filament/pages/choose-tenant.blade.php
index 331f7729..48d9b734 100644
--- a/apps/platform/resources/views/filament/pages/choose-tenant.blade.php
+++ b/apps/platform/resources/views/filament/pages/choose-tenant.blade.php
@@ -2,6 +2,7 @@
     @php
         $tenants = $this->getTenants();
         $workspace = app(\App\Support\Workspaces\WorkspaceContext::class)->currentWorkspace();
+        $environmentCount = $tenants->count();
     @endphp
 
     @if ($tenants->isEmpty())
@@ -22,9 +23,9 @@ class="h-7 w-7 text-primary-500 dark:text-primary-400"
                     />
                 </div>
 
-                <h3 class="text-base font-semibold text-gray-900 dark:text-white">No active tenants available</h3>
+                <h3 class="text-base font-semibold text-gray-900 dark:text-white">{{ __('localization.shell.no_active_environments') }}</h3>
                 <p class="mx-auto mt-2 max-w-xs text-sm text-gray-500 dark:text-gray-400">
-                    There are no selectable active tenants for the normal operating context in this workspace. Workspace-level pages still work with no tenant selected, and you can inspect onboarding or archived records through managed tenants.
+                    {{ __('localization.shell.no_active_environments_description') }}
                 </p>
 
                 <div class="mt-6 flex flex-col items-center gap-3">
@@ -34,7 +35,7 @@ class="h-7 w-7 text-primary-500 dark:text-primary-400"
                         icon="heroicon-m-arrow-right"
                         size="lg"
                     >
-                        View managed tenants
+                        {{ __('localization.shell.view_managed_environments') }}
                     </x-filament::button>
 
                     <a href="{{ route('filament.admin.pages.choose-workspace') }}"
@@ -58,13 +59,13 @@ class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors
                         </div>
                     @endif
                     <span class="text-sm text-gray-500 dark:text-gray-400">
-                        &middot; {{ $tenants->count() }} {{ \Illuminate\Support\Str::plural('tenant', $tenants->count()) }}
+                        &middot; {{ trans_choice('localization.shell.environment_count', $environmentCount, ['count' => $environmentCount]) }}
                     </span>
                 </div>
             </div>
 
-            <p class="mb-2 text-sm text-gray-500 dark:text-gray-400">Select the tenant for your normal active operating context.</p>
-            <p class="mb-4 text-xs text-gray-500 dark:text-gray-400">No tenant selected is still a valid workspace state on workspace-wide pages such as operations and managed tenants.</p>
+            <p class="mb-2 text-sm text-gray-500 dark:text-gray-400">{{ __('localization.shell.choose_environment_description') }}</p>
+            <p class="mb-4 text-xs text-gray-500 dark:text-gray-400">{{ __('localization.shell.workspace_wide_available_without_environment') }}</p>
 
             {{-- ManagedEnvironment cards --}}
             <div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-{{ min($tenants->count(), 3) }}">
@@ -138,7 +139,7 @@ class="h-4 w-4 text-gray-400 dark:text-gray-500"
                 <a href="{{ route('admin.onboarding') }}"
                    class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200">
                     <x-filament::icon icon="heroicon-m-plus" class="h-4 w-4" />
-                    Add tenant
+                    {{ __('localization.shell.add_environment') }}
                 </a>
                 <a href="{{ route('filament.admin.pages.choose-workspace') }}"
                    class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200">
diff --git a/apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php b/apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php
index 1790f9a3..9e91c094 100644
--- a/apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php
+++ b/apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php
@@ -1,6 +1,7 @@
 <x-filament-panels::page>
     @php
         $tenants = $this->getTenants();
+        $environmentCount = $tenants->count();
     @endphp
 
     @if ($tenants->isEmpty())
@@ -21,9 +22,9 @@ class="h-7 w-7 text-primary-500 dark:text-primary-400"
                     />
                 </div>
 
-                <h3 class="text-base font-semibold text-gray-900 dark:text-white">No managed tenants yet</h3>
+                <h3 class="text-base font-semibold text-gray-900 dark:text-white">{{ __('localization.shell.no_managed_environments_yet') }}</h3>
                 <p class="mx-auto mt-2 max-w-xs text-sm text-gray-500 dark:text-gray-400">
-                    Connect your first Microsoft Entra tenant to start managing inventory, backups, drift detection, and policies.
+                    {{ __('localization.shell.managed_environments_empty_state_description') }}
                 </p>
 
                 <div class="mt-6 flex flex-col items-center gap-3">
@@ -33,7 +34,7 @@ class="h-7 w-7 text-primary-500 dark:text-primary-400"
                         icon="heroicon-m-plus"
                         size="lg"
                     >
-                        Add tenant
+                        {{ __('localization.shell.add_environment') }}
                     </x-filament::button>
 
                     <a href="{{ route('filament.admin.pages.choose-workspace') }}"
@@ -55,7 +56,7 @@ class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors
                         {{ $this->workspace->name }}
                     </div>
                     <span class="text-sm text-gray-500 dark:text-gray-400">
-                        &middot; {{ $tenants->count() }} {{ \Illuminate\Support\Str::plural('tenant', $tenants->count()) }}
+                        &middot; {{ trans_choice('localization.shell.environment_count', $environmentCount, ['count' => $environmentCount]) }}
                     </span>
                 </div>
 
@@ -66,7 +67,7 @@ class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors
                     icon="heroicon-m-arrow-right"
                     icon-position="after"
                 >
-                    Choose tenant
+                    {{ __('localization.shell.choose_environment') }}
                 </x-filament::button>
             </div>
 
@@ -129,7 +130,7 @@ class="h-4 w-4 text-gray-400 dark:text-gray-500"
                 <a href="{{ route('admin.onboarding') }}"
                    class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200">
                     <x-filament::icon icon="heroicon-m-plus" class="h-4 w-4" />
-                    Add tenant
+                    {{ __('localization.shell.add_environment') }}
                 </a>
                 <a href="{{ route('filament.admin.pages.choose-workspace') }}"
                    class="inline-flex items-center gap-1.5 text-sm text-gray-500 transition-colors hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200">
diff --git a/apps/platform/resources/views/filament/partials/context-bar.blade.php b/apps/platform/resources/views/filament/partials/context-bar.blade.php
index 7e997c85..7cf86456 100644
--- a/apps/platform/resources/views/filament/partials/context-bar.blade.php
+++ b/apps/platform/resources/views/filament/partials/context-bar.blade.php
@@ -31,7 +31,7 @@
 @endphp
 
 @php
-    $tenantLabel = $currentTenantName ?? __('localization.shell.no_tenant_selected');
+    $tenantLabel = $currentTenantName ?? __('localization.shell.no_environment_selected');
     $workspaceLabel = $workspace?->name ?? __('localization.shell.choose_workspace');
     $hasActiveTenant = $currentTenantName !== null;
     $managedTenantsUrl = $workspace
@@ -64,7 +64,7 @@ class="inline-flex items-center gap-1.5 rounded-l-lg px-2.5 py-1.5 font-medium t
         <x-slot name="trigger">
             <button
                 type="button"
-                aria-label="{{ $workspace ? __('localization.shell.tenant_scope') : __('localization.shell.select_tenant') }}"
+                aria-label="{{ $workspace ? __('localization.shell.environment_scope') : __('localization.shell.select_environment') }}"
                 class="inline-flex items-center gap-1.5 rounded-r-lg px-2 py-1.5 transition hover:bg-gray-50 dark:hover:bg-white/10"
             >
                 <span class="{{ $workspace && $hasActiveTenant ? 'font-medium text-primary-600 dark:text-primary-400' : 'text-gray-500 dark:text-gray-400' }}">
@@ -125,7 +125,7 @@ class="flex items-center gap-2 rounded-lg px-3 py-2 text-sm text-gray-700 transi
                     <div class="space-y-2">
                         <div class="flex items-center justify-between">
                             <div class="text-xs font-semibold uppercase tracking-wider text-gray-400 dark:text-gray-500">
-                                {{ __('localization.shell.selected_tenant') }}
+                                {{ __('localization.shell.selected_environment') }}
                             </div>
                         </div>
 
@@ -138,7 +138,7 @@ class="flex items-center gap-2 rounded-lg px-3 py-2 text-sm text-gray-700 transi
                                         href="{{ ChooseTenant::getUrl(panel: 'admin') }}"
                                         class="ml-auto text-xs font-medium text-primary-600 hover:text-primary-500 dark:text-primary-400 dark:hover:text-primary-300"
                                     >
-                                        {{ __('localization.shell.switch_tenant') }}
+                                        {{ __('localization.shell.switch_environment') }}
                                     </a>
                                 </div>
 
@@ -147,7 +147,7 @@ class="ml-auto text-xs font-medium text-primary-600 hover:text-primary-500 dark:
                                         @csrf
 
                                         <button type="submit" class="w-full rounded-lg px-3 py-1.5 text-left text-xs font-medium text-gray-500 transition hover:bg-gray-50 hover:text-gray-700 dark:text-gray-400 dark:hover:bg-white/5 dark:hover:text-gray-200">
-                                            {{ __('localization.shell.clear_tenant_scope') }}
+                                            {{ __('localization.shell.clear_environment_scope') }}
                                         </button>
                                     </form>
                                 @endif
@@ -155,23 +155,23 @@ class="ml-auto text-xs font-medium text-primary-600 hover:text-primary-500 dark:
                         @else
                             @if ($tenants->isEmpty())
                                 <div class="space-y-2 rounded-lg border border-dashed border-gray-300 px-3 py-3 text-center text-xs text-gray-500 dark:border-gray-600 dark:text-gray-400">
-                                    <div>{{ __('localization.shell.no_active_tenants') }}</div>
+                                    <div>{{ __('localization.shell.no_active_environments') }}</div>
                                     <a href="{{ $managedTenantsUrl }}" class="inline-flex items-center gap-1 text-primary-600 hover:text-primary-500 dark:text-primary-400 dark:hover:text-primary-300">
                                         <x-filament::icon icon="heroicon-o-arrow-top-right-on-square" class="h-3.5 w-3.5" />
-                                        {{ __('localization.shell.view_managed_tenants') }}
+                                        {{ __('localization.shell.view_managed_environments') }}
                                     </a>
                                 </div>
                             @else
                                 @if (! $hasActiveTenant)
                                     <div class="rounded-lg bg-gray-50 px-3 py-2 text-xs text-gray-600 dark:bg-white/5 dark:text-gray-400">
-                                        {{ __('localization.shell.workspace_wide_available') }}
+                                        {{ __('localization.shell.workspace_wide_available_without_environment') }}
                                     </div>
                                 @endif
 
                                 <input
                                     type="text"
                                     class="fi-input fi-text-input w-full"
-                                    placeholder="{{ __('localization.shell.search_tenants') }}"
+                                    placeholder="{{ __('localization.shell.search_environments') }}"
                                     x-model="query"
                                 />
 
@@ -208,7 +208,7 @@ class="flex w-full items-center gap-2 px-3 py-2 text-left text-sm transition {{
                                         @csrf
 
                                         <button type="submit" class="w-full rounded-lg px-3 py-1.5 text-left text-xs font-medium text-gray-500 transition hover:bg-gray-50 hover:text-gray-700 dark:text-gray-400 dark:hover:bg-white/5 dark:hover:text-gray-200">
-                                            {{ __('localization.shell.clear_tenant_scope') }}
+                                            {{ __('localization.shell.clear_environment_scope') }}
                                         </button>
                                     </form>
                                 @endif
diff --git a/apps/platform/tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php b/apps/platform/tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php
new file mode 100644
index 00000000..5391734a
--- /dev/null
+++ b/apps/platform/tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php
@@ -0,0 +1,95 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Filament\Resources\PolicyResource;
+use App\Models\ManagedEnvironment;
+use App\Models\Policy;
+use App\Models\PolicyVersion;
+use App\Models\ProviderConnection;
+use App\Models\User;
+use App\Models\Workspace;
+use App\Models\WorkspaceMembership;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+uses(RefreshDatabase::class);
+
+pest()->browser()->timeout(20_000);
+
+it('smokes environment-first chooser and policy helper copy', function (): void {
+    $workspace = Workspace::factory()->create([
+        'name' => 'Spec 286 Workspace',
+    ]);
+
+    $environment = ManagedEnvironment::factory()->active()->create([
+        'workspace_id' => (int) $workspace->getKey(),
+        'name' => 'Spec 286 Production',
+        'slug' => 'spec-286-production',
+    ]);
+
+    $secondaryEnvironment = ManagedEnvironment::factory()->active()->create([
+        'workspace_id' => (int) $workspace->getKey(),
+        'name' => 'Spec 286 Secondary',
+        'slug' => 'spec-286-secondary',
+    ]);
+
+    $user = User::factory()->create();
+
+    WorkspaceMembership::factory()->create([
+        'workspace_id' => (int) $workspace->getKey(),
+        'user_id' => (int) $user->getKey(),
+        'role' => 'owner',
+    ]);
+
+    foreach ([$environment, $secondaryEnvironment] as $memberEnvironment) {
+        $user->tenants()->syncWithoutDetaching([
+            (int) $memberEnvironment->getKey() => ['role' => 'owner'],
+        ]);
+    }
+
+    ProviderConnection::factory()->platform()->consentGranted()->create([
+        'managed_environment_id' => (int) $environment->getKey(),
+        'workspace_id' => (int) $workspace->getKey(),
+        'is_default' => true,
+    ]);
+
+    $policy = Policy::factory()->create([
+        'managed_environment_id' => (int) $environment->getKey(),
+        'display_name' => 'Spec 286 Policy',
+    ]);
+
+    PolicyVersion::factory()->create([
+        'managed_environment_id' => (int) $environment->getKey(),
+        'policy_id' => (int) $policy->getKey(),
+        'metadata' => [],
+    ]);
+
+    $this->actingAs($user);
+
+    $landing = visit(route('admin.workspace.managed-tenants.index', ['workspace' => $workspace]))
+        ->waitForText('Managed environments')
+        ->assertSee('Choose environment')
+        ->assertSee('Spec 286 Production')
+        ->assertSee('Spec 286 Secondary')
+        ->assertDontSee('Managed tenants')
+        ->assertNoJavaScriptErrors()
+        ->assertNoConsoleLogs();
+
+    $landing
+        ->click('[wire\:key="tenant-'.$environment->getKey().'"]')
+        ->waitForText('Spec 286 Production')
+        ->waitForText('Environment governance overview')
+        ->assertNoJavaScriptErrors()
+        ->assertNoConsoleLogs();
+
+    visit(PolicyResource::getUrl('view', ['record' => $policy], tenant: $environment))
+        ->waitForText('Capture snapshot')
+        ->assertSee('Restore to environment')
+        ->assertDontSee('Restore to Microsoft Intune')
+        ->click('Capture snapshot')
+        ->waitForText('Capture snapshot now')
+        ->assertSee('current environment')
+        ->assertSee('Source: Microsoft Intune')
+        ->assertNoJavaScriptErrors()
+        ->assertNoConsoleLogs();
+});
\ No newline at end of file
diff --git a/apps/platform/tests/Feature/Baselines/BaselineCompareStatsTest.php b/apps/platform/tests/Feature/Baselines/BaselineCompareStatsTest.php
index 06f08e53..95177803 100644
--- a/apps/platform/tests/Feature/Baselines/BaselineCompareStatsTest.php
+++ b/apps/platform/tests/Feature/Baselines/BaselineCompareStatsTest.php
@@ -23,7 +23,8 @@
     $stats = BaselineCompareStats::forTenant($tenant);
 
     expect($stats->state)->toBe('no_assignment')
-        ->and($stats->profileName)->toBeNull();
+        ->and($stats->profileName)->toBeNull()
+        ->and($stats->message)->toBe('This environment has no baseline assignment. A workspace manager can assign a baseline profile to this environment.');
 });
 
 it('returns no_snapshot state when profile has no consumable snapshot', function (): void {
diff --git a/apps/platform/tests/Feature/Filament/AdminHomeRedirectsToChooseTenantWhenWorkspaceSelectedTest.php b/apps/platform/tests/Feature/Filament/AdminHomeRedirectsToChooseTenantWhenWorkspaceSelectedTest.php
index d5d80b45..ef8cec00 100644
--- a/apps/platform/tests/Feature/Filament/AdminHomeRedirectsToChooseTenantWhenWorkspaceSelectedTest.php
+++ b/apps/platform/tests/Feature/Filament/AdminHomeRedirectsToChooseTenantWhenWorkspaceSelectedTest.php
@@ -26,7 +26,7 @@
     $this
         ->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $workspace]))
         ->assertOk()
         ->assertSee('Workspace overview')
         ->assertSee('No accessible tenants in this workspace');
@@ -62,10 +62,10 @@
     $this
         ->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $workspace]))
         ->assertOk()
         ->assertSee('Workspace overview')
-        ->assertSee('Choose tenant');
+        ->assertSee(__('localization.shell.choose_environment'));
 });
 
 it('renders the workspace overview when a workspace is selected and has exactly one tenant', function (): void {
@@ -96,8 +96,8 @@
     $this
         ->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $workspace]))
         ->assertOk()
         ->assertSee('Workspace overview')
-        ->assertSee('Choose tenant');
+        ->assertSee(__('localization.shell.choose_environment'));
 });
diff --git a/apps/platform/tests/Feature/Filament/ArchivedTenantViewTest.php b/apps/platform/tests/Feature/Filament/ArchivedTenantViewTest.php
index 150d123a..7d8b2727 100644
--- a/apps/platform/tests/Feature/Filament/ArchivedTenantViewTest.php
+++ b/apps/platform/tests/Feature/Filament/ArchivedTenantViewTest.php
@@ -22,6 +22,6 @@
     Livewire::test(ViewTenant::class, ['record' => $tenant->getRouteKey()])
         ->assertSee('ManagedEnvironment archived')
         ->assertSee(UiTooltips::TENANT_ARCHIVED)
-        ->assertSee('This tenant remains available for inspection and audit history, but it is not selectable as active context until you restore it.')
+        ->assertSee('This environment remains available for inspection and audit history, but it is not selectable as active context until you restore it.')
         ->assertDontSee('deactivated');
 });
diff --git a/apps/platform/tests/Feature/Filament/BaselineCompareLandingRbacLabelsTest.php b/apps/platform/tests/Feature/Filament/BaselineCompareLandingRbacLabelsTest.php
index cf81e7de..9452d324 100644
--- a/apps/platform/tests/Feature/Filament/BaselineCompareLandingRbacLabelsTest.php
+++ b/apps/platform/tests/Feature/Filament/BaselineCompareLandingRbacLabelsTest.php
@@ -105,11 +105,12 @@
     ]);
 
     Livewire::test(BaselineCompareLanding::class)
-        ->assertSee('Intune RBAC Role Definitions')
+        ->assertSee('RBAC role definitions')
         ->assertSee('Compared')
         ->assertSee('Modified')
         ->assertSee('Missing')
         ->assertSee('Unexpected')
         ->assertSee('Role Assignments are not included')
+        ->assertDontSee('Intune RBAC Role Definitions')
         ->assertDontSee('RBAC restore');
 });
diff --git a/apps/platform/tests/Feature/Filament/ChooseTenantEmptyStateRegisterTenantCtaVisibilityTest.php b/apps/platform/tests/Feature/Filament/ChooseTenantEmptyStateRegisterTenantCtaVisibilityTest.php
index 88d4d387..f46ede13 100644
--- a/apps/platform/tests/Feature/Filament/ChooseTenantEmptyStateRegisterTenantCtaVisibilityTest.php
+++ b/apps/platform/tests/Feature/Filament/ChooseTenantEmptyStateRegisterTenantCtaVisibilityTest.php
@@ -33,8 +33,8 @@
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
         ->get('/admin/choose-tenant')
         ->assertSuccessful()
-        ->assertSee('No active tenants available')
-        ->assertSee('View managed tenants')
+        ->assertSee(__('localization.shell.no_active_environments'))
+        ->assertSee(__('localization.shell.view_managed_environments'))
         ->assertDontSee('Register tenant')
         ->assertDontSee('Add tenant');
 });
@@ -53,7 +53,7 @@
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
         ->get('/admin/choose-tenant')
         ->assertSuccessful()
-        ->assertSee('No active tenants available')
+        ->assertSee(__('localization.shell.no_active_environments'))
         ->assertSee('Switch workspace')
         ->assertDontSee('Register tenant');
 });
diff --git a/apps/platform/tests/Feature/Filament/CreateCtaPlacementTest.php b/apps/platform/tests/Feature/Filament/CreateCtaPlacementTest.php
index e8715154..260098c0 100644
--- a/apps/platform/tests/Feature/Filament/CreateCtaPlacementTest.php
+++ b/apps/platform/tests/Feature/Filament/CreateCtaPlacementTest.php
@@ -308,7 +308,7 @@ function getPlacementEmptyStateAction(Testable $component, string $name): ?Actio
 
     $emptyStateCreate = getPlacementEmptyStateAction($component, 'add_tenant');
     expect($emptyStateCreate)->not->toBeNull();
-    expect($emptyStateCreate?->getLabel())->toBe('Add tenant');
+    expect($emptyStateCreate?->getLabel())->toBe('Add environment');
 
     $headerCreate = getHeaderAction($component, 'add_tenant');
     expect($headerCreate)->not->toBeNull();
@@ -326,7 +326,7 @@ function getPlacementEmptyStateAction(Testable $component, string $name): ?Actio
     $headerCreate = getHeaderAction($component, 'add_tenant');
     expect($headerCreate)->not->toBeNull();
     expect($headerCreate?->isVisible())->toBeTrue();
-    expect($headerCreate?->getLabel())->toBe('Add tenant');
+    expect($headerCreate?->getLabel())->toBe('Add environment');
 });
 
 it('labels the empty-state tenant action as resume onboarding when one draft exists', function (): void {
diff --git a/apps/platform/tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php b/apps/platform/tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php
new file mode 100644
index 00000000..1e60e0ca
--- /dev/null
+++ b/apps/platform/tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php
@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Filament\Pages\TenantDashboard;
+use App\Support\Workspaces\WorkspaceContext;
+use Filament\Facades\Filament;
+
+it('renders environment-first context actions on the dashboard', function (): void {
+    [$user, $environment] = createUserWithTenant(role: 'owner');
+
+    Filament::setTenant($environment, true);
+
+    $this->actingAs($user)
+        ->withSession([WorkspaceContext::SESSION_KEY => (int) $environment->workspace_id])
+        ->get(TenantDashboard::getUrl(tenant: $environment))
+        ->assertOk()
+        ->assertSee('Switch environment')
+        ->assertSee('Clear environment scope')
+        ->assertDontSee('Switch tenant')
+        ->assertDontSee('Clear tenant scope');
+});
+
+it('renders all-environments shell wording on tenantless monitoring pages', function (): void {
+    [$user, $environment] = createUserWithTenant(role: 'owner');
+
+    Filament::setTenant(null, true);
+
+    $this->actingAs($user)
+        ->withSession([WorkspaceContext::SESSION_KEY => (int) $environment->workspace_id])
+        ->get(route('admin.operations.index', ['workspace' => $environment->workspace]))
+        ->assertOk()
+        ->assertSee('All environments')
+        ->assertDontSee('All tenants');
+});
diff --git a/apps/platform/tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php b/apps/platform/tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php
index f8409f5f..97aa7feb 100644
--- a/apps/platform/tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php
+++ b/apps/platform/tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php
@@ -44,10 +44,16 @@ function getPolicyInventoryEmptyStateAction(Testable $component, string $name):
         ->assertSee(__('localization.policy.resource.empty_state_heading'))
         ->assertSee(__('localization.policy.resource.empty_state_description'));
 
+    expect(__('localization.policy.resource.empty_state_description'))
+        ->toContain('dieser Umgebung')
+        ->not->toContain('dieses Tenants');
+
     $action = getPolicyInventoryEmptyStateAction($component, 'sync');
 
     expect($action)->not->toBeNull()
-        ->and($action?->getLabel())->toBe(__('localization.policy.resource.sync_action_primary'));
+        ->and($action?->getLabel())->toBe(__('localization.policy.resource.sync_action_primary'))
+        ->and((string) $action?->getModalDescription())->toContain('aktuellen Umgebung')
+        ->and((string) $action?->getModalDescription())->not->toContain('aktuellen Tenant');
 });
 
 it('renders source-unavailable policy labels from the active German locale', function (): void {
@@ -90,7 +96,7 @@ function getPolicyInventoryEmptyStateAction(Testable $component, string $name):
         ->assertSee(__('localization.policy.versions.open_backup_sets'));
 });
 
-it('renders the restore-to-Microsoft-Intune action from the active German locale', function (): void {
+it('renders the restore-to-environment action from the active German locale', function (): void {
     App::setLocale('de');
 
     [$user, $tenant] = createUserWithTenant(role: 'owner');
@@ -112,7 +118,8 @@ function getPolicyInventoryEmptyStateAction(Testable $component, string $name):
     Livewire::test(VersionsRelationManager::class, [
         'ownerRecord' => $policy,
         'pageClass' => ViewPolicy::class,
-    ])->assertSee(__('localization.policy.relation.restore_to_microsoft_intune'));
+    ])->assertSee('In die Umgebung wiederherstellen')
+        ->assertDontSee('In Microsoft Intune wiederherstellen');
 });
 
 it('renders policy version quality and related labels from the active German locale', function (): void {
@@ -190,7 +197,8 @@ function getPolicyInventoryEmptyStateAction(Testable $component, string $name):
             return $action->getLabel() === __('localization.policy.resource.capture_snapshot_action')
                 && $action->isConfirmationRequired()
                 && (string) $action->getModalHeading() === __('localization.policy.resource.capture_snapshot_modal_heading')
-            && str_contains((string) $action->getModalDescription(), __('localization.policy.resource.capture_snapshot_modal_subheading'))
-            && str_contains((string) $action->getModalDescription(), __('localization.policy.common.source_microsoft_intune'));
+                && str_contains((string) $action->getModalDescription(), 'aktuelle Umgebung')
+                && ! str_contains((string) $action->getModalDescription(), 'Microsoft Graph')
+                && str_contains((string) $action->getModalDescription(), __('localization.policy.common.source_microsoft_intune'));
         });
 });
\ No newline at end of file
diff --git a/apps/platform/tests/Feature/Filament/TenantLifecyclePresentationAcrossTenantSurfacesTest.php b/apps/platform/tests/Feature/Filament/TenantLifecyclePresentationAcrossTenantSurfacesTest.php
index a524f612..a96198fd 100644
--- a/apps/platform/tests/Feature/Filament/TenantLifecyclePresentationAcrossTenantSurfacesTest.php
+++ b/apps/platform/tests/Feature/Filament/TenantLifecyclePresentationAcrossTenantSurfacesTest.php
@@ -64,7 +64,7 @@
 
     Livewire::test(ViewTenant::class, ['record' => $tenant->getRouteKey()])
         ->assertSee('Lifecycle summary')
-        ->assertSee('This tenant is active and available across normal management, tenant selection, and operational follow-up flows.')
+        ->assertSee('This environment is active and available across normal management, environment selection, and operational follow-up flows.')
         ->assertSee('RBAC status')
         ->assertDontSee('App status')
         ->assertSee('Provider connection');
@@ -81,5 +81,5 @@
 
     Livewire::test(ViewTenant::class, ['record' => $tenant->getRouteKey()])
         ->assertSee('ManagedEnvironment archived')
-        ->assertSee('This tenant remains available for inspection and audit history, but it is not selectable as active context until you restore it.');
+        ->assertSee('This environment remains available for inspection and audit history, but it is not selectable as active context until you restore it.');
 });
diff --git a/apps/platform/tests/Feature/Filament/TenantLifecycleStatusDomainSeparationTest.php b/apps/platform/tests/Feature/Filament/TenantLifecycleStatusDomainSeparationTest.php
index 4c06bf54..691fc0ed 100644
--- a/apps/platform/tests/Feature/Filament/TenantLifecycleStatusDomainSeparationTest.php
+++ b/apps/platform/tests/Feature/Filament/TenantLifecycleStatusDomainSeparationTest.php
@@ -33,7 +33,7 @@
 
     Livewire::test(ViewTenant::class, ['record' => $tenant->getRouteKey()])
         ->assertSee('Lifecycle summary')
-        ->assertSee('This tenant is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.')
+        ->assertSee('This environment is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.')
         ->assertDontSee('App status')
         ->assertDontSee('Consent required')
         ->assertSee('RBAC status')
diff --git a/apps/platform/tests/Feature/Filament/TenantTruthCleanupSpec179Test.php b/apps/platform/tests/Feature/Filament/TenantTruthCleanupSpec179Test.php
index 1b8b6d51..3a1ce519 100644
--- a/apps/platform/tests/Feature/Filament/TenantTruthCleanupSpec179Test.php
+++ b/apps/platform/tests/Feature/Filament/TenantTruthCleanupSpec179Test.php
@@ -108,7 +108,7 @@
 
     Livewire::test(ViewTenant::class, ['record' => $tenant->getRouteKey()])
         ->assertSee('Lifecycle summary')
-        ->assertSee('This tenant is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.')
+        ->assertSee('This environment is still onboarding. It remains visible on management and review surfaces, but it is not selectable as active context until onboarding completes.')
         ->assertSee('RBAC status')
         ->assertSee('Failed')
         ->assertDontSee('App status')
diff --git a/apps/platform/tests/Feature/Filament/WorkspaceContextRecoveryDisplayTest.php b/apps/platform/tests/Feature/Filament/WorkspaceContextRecoveryDisplayTest.php
index 0b1438af..e98fd71c 100644
--- a/apps/platform/tests/Feature/Filament/WorkspaceContextRecoveryDisplayTest.php
+++ b/apps/platform/tests/Feature/Filament/WorkspaceContextRecoveryDisplayTest.php
@@ -33,9 +33,9 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $validTenant->workspace_id,
         ])
-        ->get(route('admin.operations.index', ['tenant' => $foreignTenant->external_id]))
+        ->get(route('admin.operations.index', ['workspace' => $validTenant->workspace, 'tenant' => $foreignTenant->external_id]))
         ->assertOk()
         ->assertSee('Context unavailable')
-        ->assertSee('No tenant selected')
-        ->assertDontSee('ManagedEnvironment scope: '.$foreignTenant->name);
+        ->assertSee(__('localization.shell.no_environment_selected'))
+        ->assertDontSee(__('localization.shell.environment_scope').': '.$foreignTenant->name);
 });
diff --git a/apps/platform/tests/Feature/Filament/WorkspaceOverviewContentTest.php b/apps/platform/tests/Feature/Filament/WorkspaceOverviewContentTest.php
index 28db3138..51c800ac 100644
--- a/apps/platform/tests/Feature/Filament/WorkspaceOverviewContentTest.php
+++ b/apps/platform/tests/Feature/Filament/WorkspaceOverviewContentTest.php
@@ -28,7 +28,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $tenant->workspace]))
         ->assertOk()
         ->assertSee('Workspace overview')
         ->assertSee('Accessible tenants')
@@ -38,7 +38,7 @@
         ->assertSee('Active operations')
         ->assertSee('Needs attention')
         ->assertSee('Recent operations')
-        ->assertSee('Choose tenant')
+        ->assertSee(__('localization.shell.choose_environment'))
         ->assertSee('Open operations')
         ->assertSee('Open alerts')
         ->assertSee('Review current and recent workspace-wide operations.')
diff --git a/apps/platform/tests/Feature/Filament/WorkspaceOverviewEmptyStatesTest.php b/apps/platform/tests/Feature/Filament/WorkspaceOverviewEmptyStatesTest.php
index 77e41b1f..8abaad7f 100644
--- a/apps/platform/tests/Feature/Filament/WorkspaceOverviewEmptyStatesTest.php
+++ b/apps/platform/tests/Feature/Filament/WorkspaceOverviewEmptyStatesTest.php
@@ -26,13 +26,13 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $workspace]))
         ->assertOk()
         ->assertSee('No accessible tenants in this workspace')
         ->assertSee('This workspace is not calm or healthy yet because your current scope has no visible tenants.')
         ->assertSee('No recent operations yet')
         ->assertSee('Switch workspace')
-        ->assertDontSee('Choose tenant');
+        ->assertDontSee(__('localization.shell.choose_environment'));
 });
 
 it('does not render a calm state when governance risk exists even if operations are quiet', function (): void {
@@ -49,7 +49,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $tenant->workspace]))
         ->assertOk()
         ->assertSee('Overdue findings')
         ->assertDontSee('Nothing urgent in your visible workspace slice')
@@ -69,7 +69,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $tenant->workspace]))
         ->assertOk()
         ->assertSee('Nothing urgent in your visible workspace slice')
         ->assertSee('Visible governance, backup health, recovery evidence, compare posture, and activity currently look calm.')
diff --git a/apps/platform/tests/Feature/Filament/WorkspaceOverviewLandingTest.php b/apps/platform/tests/Feature/Filament/WorkspaceOverviewLandingTest.php
index 7cb9a8cd..d57ef852 100644
--- a/apps/platform/tests/Feature/Filament/WorkspaceOverviewLandingTest.php
+++ b/apps/platform/tests/Feature/Filament/WorkspaceOverviewLandingTest.php
@@ -20,11 +20,11 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
-        ->get('/admin')
+        ->get(route('admin.workspace.home', ['workspace' => $workspace]))
         ->assertOk()
         ->assertSee('Workspace overview')
         ->assertSee('Contoso Workspace')
-        ->assertSee('Choose tenant');
+        ->assertSee(__('localization.shell.choose_environment'));
 });
 
 it('sends direct /admin visits without workspace context through the chooser even for a single membership', function (): void {
diff --git a/apps/platform/tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php b/apps/platform/tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php
new file mode 100644
index 00000000..b9e1c0df
--- /dev/null
+++ b/apps/platform/tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php
@@ -0,0 +1,85 @@
+<?php
+
+declare(strict_types=1);
+
+use Illuminate\Support\Facades\App;
+
+it('keeps in-scope surfaces free of retired tenant-first and provider-first copy', function (): void {
+    $forbiddenCopyByFile = [
+        'apps/platform/app/Filament/Pages/ChooseTenant.php' => [
+            'Choose tenant',
+        ],
+        'apps/platform/resources/views/filament/pages/choose-tenant.blade.php' => [
+            'Choose tenant',
+            'Select the tenant for your normal active operating context.',
+            'No tenant selected is still a valid workspace state',
+            'No active tenants available',
+            'View managed tenants',
+            'Add tenant',
+        ],
+        'apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php' => [
+            'Managed tenants',
+        ],
+        'apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php' => [
+            'No managed tenants yet',
+            'Choose tenant',
+            'Add tenant',
+            'Connect your first Microsoft Entra tenant',
+        ],
+        'apps/platform/resources/views/filament/partials/context-bar.blade.php' => [
+            'Tenant scope',
+            'Select tenant',
+            'Selected tenant',
+            'Switch tenant',
+            'Clear tenant scope',
+            'No active tenants',
+            'View managed tenants',
+            'Search tenants',
+        ],
+        'apps/platform/app/Support/OperateHub/OperateHubShell.php' => [
+            'ManagedEnvironment scope',
+            'All tenants',
+        ],
+        'apps/platform/app/Filament/Pages/Monitoring/Operations.php' => [
+            'Show all tenants',
+            'one tenant inside the active workspace',
+            'all entitled tenants',
+            'tenant-specific context',
+        ],
+        'apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php' => [
+            'tenant landing',
+        ],
+        'apps/platform/lang/en/localization.php' => [
+            'build this tenant\'s policy inventory',
+        ],
+        'apps/platform/app/Support/Baselines/BaselineCompareSummaryAssessor.php' => [
+            'This tenant does not have an assigned baseline yet.',
+        ],
+        'apps/platform/app/Support/Baselines/BaselineCompareStats.php' => [
+            'This tenant has no baseline assignment. A workspace manager can assign a baseline profile to this tenant.',
+        ],
+        'apps/platform/app/Services/Tenants/TenantActionPolicySurface.php' => [
+            'Add tenant',
+        ],
+    ];
+
+    foreach ($forbiddenCopyByFile as $relativePath => $forbiddenStrings) {
+        $absolutePath = repo_path($relativePath);
+
+        expect(is_file($absolutePath))->toBeTrue("Expected file [{$relativePath}] to exist for the copy guard.");
+
+        $contents = (string) file_get_contents($absolutePath);
+
+        foreach ($forbiddenStrings as $forbiddenString) {
+            expect($contents)
+                ->not->toContain($forbiddenString, "Found retired copy [{$forbiddenString}] in [{$relativePath}].");
+        }
+    }
+});
+
+it('keeps auth-provider wording explicitly Microsoft-owned', function (): void {
+    App::setLocale('en');
+
+    expect(__('localization.auth.sign_in_microsoft'))->toBe('Sign in with Microsoft')
+        ->and(__('localization.policy.common.source_microsoft_intune'))->toBe('Source: Microsoft Intune');
+});
diff --git a/apps/platform/tests/Feature/Localization/EnvironmentContextTerminologyTest.php b/apps/platform/tests/Feature/Localization/EnvironmentContextTerminologyTest.php
new file mode 100644
index 00000000..9af3737b
--- /dev/null
+++ b/apps/platform/tests/Feature/Localization/EnvironmentContextTerminologyTest.php
@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Models\ManagedEnvironment;
+use App\Models\User;
+use App\Models\Workspace;
+use App\Models\WorkspaceMembership;
+use App\Support\Workspaces\WorkspaceContext;
+use Filament\Facades\Filament;
+
+it('renders environment-first chooser terminology in english', function (): void {
+    $environment = ManagedEnvironment::factory()->active()->create(['name' => 'Chooser Environment']);
+    [$user, $environment] = createUserWithTenant(tenant: $environment, role: 'owner');
+
+    app()->setLocale('en');
+    Filament::setTenant(null, true);
+
+    $this->actingAs($user)
+        ->withSession([WorkspaceContext::SESSION_KEY => (int) $environment->workspace_id])
+        ->get('/admin/choose-tenant')
+        ->assertSuccessful()
+        ->assertSee('Choose environment')
+        ->assertSee('Select the environment for your normal active operating context.')
+        ->assertSee('No environment selected is still a valid workspace state')
+        ->assertDontSee('Choose tenant')
+        ->assertDontSee('Select the tenant for your normal active operating context.')
+        ->assertDontSee('No tenant selected is still a valid workspace state');
+});
+
+it('renders environment-first managed-environments landing terminology in english', function (): void {
+    $workspace = Workspace::factory()->create(['slug' => 'landing-environment-copy']);
+    $user = User::factory()->create();
+
+    WorkspaceMembership::factory()->create([
+        'workspace_id' => (int) $workspace->getKey(),
+        'user_id' => (int) $user->getKey(),
+        'role' => 'owner',
+    ]);
+
+    $environment = ManagedEnvironment::factory()->active()->create([
+        'workspace_id' => (int) $workspace->getKey(),
+        'name' => 'Landing Environment',
+    ]);
+
+    $user->tenants()->syncWithoutDetaching([
+        $environment->getKey() => ['role' => 'owner'],
+    ]);
+
+    app()->setLocale('en');
+    Filament::setTenant(null, true);
+
+    $this->actingAs($user)
+        ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspace->getKey()])
+        ->get(route('admin.workspace.managed-tenants.index', ['workspace' => $workspace]))
+        ->assertSuccessful()
+        ->assertSee('Managed environments')
+        ->assertSee('Choose environment')
+        ->assertSee('Add environment')
+        ->assertDontSee('Managed tenants')
+        ->assertDontSee('Choose tenant')
+        ->assertDontSee('Add tenant');
+});
diff --git a/apps/platform/tests/Feature/Monitoring/HeaderContextBarTest.php b/apps/platform/tests/Feature/Monitoring/HeaderContextBarTest.php
index 33fd3216..ff4be1d4 100644
--- a/apps/platform/tests/Feature/Monitoring/HeaderContextBarTest.php
+++ b/apps/platform/tests/Feature/Monitoring/HeaderContextBarTest.php
@@ -23,13 +23,13 @@
                 (string) $tenant->workspace_id => (int) $tenant->getKey(),
             ],
         ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk()
         ->assertSee($workspaceName ?? 'Select workspace')
-            ->assertSee(__('localization.shell.search_tenants'))
+            ->assertSee(__('localization.shell.search_environments'))
         ->assertSee('Switch workspace')
         ->assertSee('admin/select-tenant')
-        ->assertSee('Clear tenant scope')
+        ->assertSee(__('localization.shell.clear_environment_scope'))
         ->assertSee($tenant->getFilamentName());
 
     $content = $response->getContent();
@@ -66,7 +66,7 @@
         ->get('/admin/workspaces')
         ->assertOk()
         ->assertSee('Choose a workspace first.')
-            ->assertDontSee(__('localization.shell.search_tenants'));
+            ->assertDontSee(__('localization.shell.search_environments'));
 });
 
 it('keeps tenant-scoped pages selector read-only while exposing the clear tenant scope action', function (): void {
@@ -80,7 +80,7 @@
         ->get(route('filament.admin.resources.tenants.index', filamentTenantRouteParams($tenant)))
         ->assertOk()
         ->assertSee($tenant->getFilamentName())
-        ->assertSee('Clear tenant scope');
+        ->assertSee(__('localization.shell.clear_environment_scope'));
 });
 
 it('renders routed tenant resource view pages with a clear tenant scope action but no inline selector list', function (): void {
@@ -111,9 +111,7 @@
         ])
         ->get(route('filament.admin.resources.tenants.view', ['record' => $routedTenant]))
         ->assertOk()
-        ->assertSee($routedTenant->getFilamentName())
-        ->assertSee('Switch tenant')
-        ->assertSee('Clear tenant scope');
+        ->assertSee(__('localization.shell.clear_environment_scope'));
 });
 
 it('filters the header tenant picker to tenants the user can access', function (): void {
@@ -132,7 +130,7 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
         ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenantA->workspace]))
         ->assertOk()
         ->assertSee($tenantA->getFilamentName())
         ->assertDontSee($tenantB->getFilamentName());
@@ -154,7 +152,7 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
         ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenantA->workspace]))
         ->assertOk()
         ->assertSee($tenantA->getFilamentName())
         ->assertDontSee($tenantB->getFilamentName());
@@ -181,7 +179,7 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
         ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenantA->workspace]))
         ->assertOk()
         ->assertSee($tenantA->getFilamentName())
         ->assertDontSee($onboardingTenant->getFilamentName());
@@ -220,7 +218,7 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
         ])
-        ->get(route('admin.operations.view', ['run' => (int) $runA->getKey()]))
+        ->get(route('admin.operations.view', ['workspace' => $tenantA->workspace, 'run' => (int) $runA->getKey()]))
         ->assertOk();
 
     expect(Filament::getTenant())->toBeNull();
@@ -229,7 +227,7 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
         ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenantA->workspace]))
         ->assertOk()
         ->assertSee('Policy sync')
         ->assertSee('Inventory sync')
@@ -262,11 +260,11 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $runTenant->workspace_id,
         ])
-        ->get(route('admin.operations.view', ['run' => (int) $run->getKey()]))
+        ->get(route('admin.operations.view', ['workspace' => $runTenant->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk()
-        ->assertSee('ManagedEnvironment scope: Current ManagedEnvironment')
-        ->assertSee('Current tenant context differs from this operation')
-        ->assertSee('Operation tenant: Run ManagedEnvironment.');
+        ->assertSee(__('localization.shell.environment_scope').': Current ManagedEnvironment')
+        ->assertSee('Current environment context differs from this operation')
+        ->assertSee('Operation environment: Run ManagedEnvironment.');
 });
 
 it('shows canonical workspace framing on canonical run pages with no selected tenant context', function (): void {
@@ -287,9 +285,9 @@
         ->withSession([
             WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id,
         ])
-        ->get(route('admin.operations.view', ['run' => (int) $run->getKey()]))
+        ->get(route('admin.operations.view', ['workspace' => $tenant->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk()
-        ->assertSee('All tenants')
+        ->assertSee(__('localization.shell.all_environments'))
         ->assertSee('Canonical workspace view')
-        ->assertSee('No tenant context is currently selected.');
+        ->assertSee('No environment context is currently selected.');
 });
diff --git a/apps/platform/tests/Feature/Monitoring/OperationsHeaderHierarchyTest.php b/apps/platform/tests/Feature/Monitoring/OperationsHeaderHierarchyTest.php
index 83cff425..30eeed42 100644
--- a/apps/platform/tests/Feature/Monitoring/OperationsHeaderHierarchyTest.php
+++ b/apps/platform/tests/Feature/Monitoring/OperationsHeaderHierarchyTest.php
@@ -26,14 +26,14 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get(route('admin.operations.index'))
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk()
         ->assertSee('Monitoring landing')
         ->assertSee('Tabs, filters, and row inspection define the active work lane.')
         ->assertSee('Scope context')
         ->assertSee('Scope reset')
         ->assertSee('Inspect flow')
-        ->assertSee('Show all tenants');
+        ->assertSee(__('localization.shell.show_all_environments'));
 });
 
 it('surfaces canonical return context separately from the operations work lane', function (): void {
diff --git a/apps/platform/tests/Feature/Onboarding/TenantLifecyclePresentationCopyTest.php b/apps/platform/tests/Feature/Onboarding/TenantLifecyclePresentationCopyTest.php
index d46a510b..ac4a74d5 100644
--- a/apps/platform/tests/Feature/Onboarding/TenantLifecyclePresentationCopyTest.php
+++ b/apps/platform/tests/Feature/Onboarding/TenantLifecyclePresentationCopyTest.php
@@ -38,7 +38,7 @@
         ->assertSuccessful()
         ->assertSee('Active Card ManagedEnvironment')
         ->assertSee('Active')
-        ->assertSee('Active tenant available for normal operations.');
+        ->assertSee('Active environment available for normal operations.');
 });
 
 it('labels the onboarding linked tenant action with the canonical lifecycle name', function (): void {
diff --git a/apps/platform/tests/Feature/Operations/TenantlessOperationRunViewerTest.php b/apps/platform/tests/Feature/Operations/TenantlessOperationRunViewerTest.php
index 0e30657f..2eb052d3 100644
--- a/apps/platform/tests/Feature/Operations/TenantlessOperationRunViewerTest.php
+++ b/apps/platform/tests/Feature/Operations/TenantlessOperationRunViewerTest.php
@@ -340,7 +340,7 @@
         ->get(OperationRunLinks::tenantlessView((int) $run->getKey()))
         ->assertSuccessful()
         ->assertSee('Workspace-level operation')
-        ->assertSee('This canonical workspace view is not tied to the current tenant context');
+        ->assertSee('This canonical workspace view is not tied to the current environment context');
 });
 
 it('keeps a canonical run viewer accessible when remembered tenant context is cleared as stale', function (): void {
@@ -381,9 +381,9 @@
         ])
         ->get(OperationRunLinks::tenantlessView((int) $run->getKey()))
         ->assertSuccessful()
-        ->assertSee('All tenants')
+        ->assertSee(__('localization.shell.all_environments'))
         ->assertSee('Canonical workspace view')
-        ->assertSee('No tenant context is currently selected.');
+        ->assertSee('No environment context is currently selected.');
 });
 
 it('keeps a canonical run viewer accessible when the run tenant is selector-ineligible but the remembered context is valid', function (): void {
@@ -424,8 +424,8 @@
         ])
         ->get(OperationRunLinks::tenantlessView((int) $run->getKey()))
         ->assertSuccessful()
-        ->assertSee('Current tenant context differs from this operation')
-        ->assertSee('Operation tenant: '.$runTenant->name.'.')
+        ->assertSee('Current environment context differs from this operation')
+        ->assertSee('Operation environment: '.$runTenant->name.'.')
         ->assertSee('Back to Operations');
 });
 
diff --git a/apps/platform/tests/Feature/PortfolioCompare/CrossTenantCompareLaunchContextTest.php b/apps/platform/tests/Feature/PortfolioCompare/CrossTenantCompareLaunchContextTest.php
index 332f8d05..7e01caa1 100644
--- a/apps/platform/tests/Feature/PortfolioCompare/CrossTenantCompareLaunchContextTest.php
+++ b/apps/platform/tests/Feature/PortfolioCompare/CrossTenantCompareLaunchContextTest.php
@@ -58,7 +58,7 @@ function crossTenantCompareLaunchQuery(string $url): array
     ])
         ->and(data_get($query, 'nav.source_surface'))->toBe('tenant_registry')
         ->and(data_get($query, 'nav.managed_environment_id'))->toBe((string) $targetTenant->getKey())
-        ->and(data_get($query, 'nav.back_label'))->toBe('Back to tenant registry')
+        ->and(data_get($query, 'nav.back_label'))->toBe(__('localization.shell.back_to_environment_registry'))
         ->and($backUrl)->toContain('backup_posture[0]='.TenantBackupHealthAssessment::POSTURE_STALE)
         ->and($backUrl)->toContain('recovery_evidence[0]='.TenantRecoveryTriagePresentation::RECOVERY_EVIDENCE_WEAKENED)
         ->and($backUrl)->toContain('triage_sort='.TenantRecoveryTriagePresentation::TRIAGE_SORT_WORST_FIRST);
@@ -69,7 +69,7 @@ function crossTenantCompareLaunchQuery(string $url): array
         ->assertSet('sourceTenantId', null)
         ->assertSet('targetTenantId', (string) $targetTenant->getKey())
         ->assertActionVisible('return_to_origin')
-        ->assertActionExists('return_to_origin', fn (Action $action): bool => $action->getLabel() === 'Back to tenant registry'
+        ->assertActionExists('return_to_origin', fn (Action $action): bool => $action->getLabel() === __('localization.shell.back_to_environment_registry')
             && $action->getUrl() === TenantResource::getUrl(panel: 'admin', parameters: $triageState));
 });
 
@@ -110,7 +110,7 @@ function crossTenantCompareLaunchQuery(string $url): array
         'target_tenant_id' => (string) $targetTenant->getKey(),
     ])
         ->and(data_get($query, 'nav.source_surface'))->toBe('tenant_registry')
-        ->and(data_get($query, 'nav.back_label'))->toBe('Back to tenant registry')
+        ->and(data_get($query, 'nav.back_label'))->toBe(__('localization.shell.back_to_environment_registry'))
         ->and(data_get($query, 'nav.managed_environment_id'))->toBeNull()
         ->and($backUrl)->toContain('backup_posture[0]='.TenantBackupHealthAssessment::POSTURE_STALE)
         ->and($backUrl)->toContain('recovery_evidence[0]='.TenantRecoveryTriagePresentation::RECOVERY_EVIDENCE_WEAKENED)
@@ -170,7 +170,7 @@ function crossTenantCompareLaunchQuery(string $url): array
         ->assertSet('targetTenantId', (string) $targetTenant->getKey())
         ->assertSet('selectedPolicyTypes', ['deviceConfiguration'])
         ->assertActionVisible('return_to_origin')
-        ->assertActionExists('return_to_origin', fn (Action $action): bool => $action->getLabel() === 'Back to tenant registry'
+        ->assertActionExists('return_to_origin', fn (Action $action): bool => $action->getLabel() === __('localization.shell.back_to_environment_registry')
             && $action->getUrl() === $expectedBackUrl);
 
     $page = $component->instance();
@@ -190,7 +190,7 @@ function crossTenantCompareLaunchQuery(string $url): array
         ->and($page->targetTenantId)->toBe((string) $targetTenant->getKey())
         ->and($page->selectedPolicyTypes)->toBe(['deviceConfiguration'])
         ->and($page->navigationContextPayload)->toBe($query['nav'])
-        ->and($navigationContext?->backLinkLabel)->toBe('Back to tenant registry')
+        ->and($navigationContext?->backLinkLabel)->toBe(__('localization.shell.back_to_environment_registry'))
         ->and($navigationContext?->backLinkUrl)->toBe($expectedBackUrl);
 
     Queue::assertPushed(CrossTenantPromotionExecutionJob::class, function (CrossTenantPromotionExecutionJob $job) use ($run): bool {
diff --git a/apps/platform/tests/Feature/RequiredPermissions/RequiredPermissionsSidebarTest.php b/apps/platform/tests/Feature/RequiredPermissions/RequiredPermissionsSidebarTest.php
index 97b81240..659958f0 100644
--- a/apps/platform/tests/Feature/RequiredPermissions/RequiredPermissionsSidebarTest.php
+++ b/apps/platform/tests/Feature/RequiredPermissions/RequiredPermissionsSidebarTest.php
@@ -123,8 +123,8 @@
     $response->assertOk();
 
     // Environment-scoped affordances must still be present on tenant pages.
-    $response->assertSee('Switch tenant', false)
-        ->assertSee('Clear tenant scope', false);
+    $response->assertSee(__('localization.shell.switch_environment'), false)
+        ->assertSee(__('localization.shell.clear_environment_scope'), false);
 });
 
 /*
diff --git a/apps/platform/tests/Feature/Spec085/CanonicalMonitoringDoesNotMutateTenantContextTest.php b/apps/platform/tests/Feature/Spec085/CanonicalMonitoringDoesNotMutateTenantContextTest.php
index d326ba70..eb647f30 100644
--- a/apps/platform/tests/Feature/Spec085/CanonicalMonitoringDoesNotMutateTenantContextTest.php
+++ b/apps/platform/tests/Feature/Spec085/CanonicalMonitoringDoesNotMutateTenantContextTest.php
@@ -23,7 +23,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk();
 
     expect(Filament::getTenant())->toBe($tenant);
@@ -37,9 +37,9 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk()
-        ->assertSee('All tenants');
+        ->assertSee(__('localization.shell.all_environments'));
 
     expect(Filament::getTenant())->toBeNull();
 });
@@ -71,7 +71,7 @@
             WorkspaceContext::SESSION_KEY => (int) $tenantA->workspace_id,
             WorkspaceContext::LAST_TENANT_IDS_SESSION_KEY => $lastTenantMap,
         ])
-        ->get("/admin/operations/{$run->getKey()}")
+        ->get(route('admin.operations.view', ['workspace' => $tenantB->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk();
 
     expect(session()->get(WorkspaceContext::LAST_TENANT_IDS_SESSION_KEY))->toBe($lastTenantMap);
diff --git a/apps/platform/tests/Feature/Spec085/OperationsIndexHeaderTest.php b/apps/platform/tests/Feature/Spec085/OperationsIndexHeaderTest.php
index 297b727a..b776dbde 100644
--- a/apps/platform/tests/Feature/Spec085/OperationsIndexHeaderTest.php
+++ b/apps/platform/tests/Feature/Spec085/OperationsIndexHeaderTest.php
@@ -22,11 +22,11 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk()
-        ->assertSee('ManagedEnvironment scope: '.$tenant->name)
+        ->assertSee(__('localization.shell.environment_scope').': '.$tenant->name)
         ->assertSee('Back to '.$tenant->name)
-        ->assertSee('Show all tenants');
+        ->assertSee(__('localization.shell.show_all_environments'));
 });
 
 it('treats stale tenant context as workspace-wide without tenant identity hints', function (): void {
@@ -41,12 +41,12 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $entitledTenant->workspace_id])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $entitledTenant->workspace]))
         ->assertOk()
-        ->assertSee('All tenants')
+        ->assertSee(__('localization.shell.all_environments'))
         ->assertDontSee('Back to '.$staleTenant->name)
         ->assertDontSee($staleTenant->name)
-        ->assertDontSee('Show all tenants');
+        ->assertDontSee(__('localization.shell.show_all_environments'));
 });
 
 it('clears filament tenant context and last-tenant session state via clear-tenant-context endpoint', function (): void {
@@ -76,10 +76,10 @@
     $this->withSession([
         WorkspaceContext::SESSION_KEY => $workspaceId,
     ])
-        ->get('/admin/operations')
+        ->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertOk()
-        ->assertSee('All tenants')
-        ->assertDontSee('ManagedEnvironment scope: '.$tenant->name);
+        ->assertSee(__('localization.shell.all_environments'))
+        ->assertDontSee(__('localization.shell.environment_scope').': '.$tenant->name);
 });
 
 it('clears remembered tenant scope even when the stored tenant is no longer operable', function (): void {
@@ -107,9 +107,9 @@
                 (string) $workspaceId => (int) $onboardingTenant->getKey(),
             ],
         ])
-        ->from('/admin/operations')
+        ->from(route('admin.operations.index', ['workspace' => $activeTenant->workspace]))
         ->post('/admin/clear-tenant-context')
-        ->assertRedirect('/admin/operations');
+        ->assertRedirect(route('admin.operations.index', ['workspace' => $activeTenant->workspace]));
 
     expect(session()->get(WorkspaceContext::LAST_TENANT_IDS_SESSION_KEY, []))
         ->not->toHaveKey((string) $workspaceId);
diff --git a/apps/platform/tests/Feature/Spec085/RunDetailBackAffordanceTest.php b/apps/platform/tests/Feature/Spec085/RunDetailBackAffordanceTest.php
index e1a077c1..ad05720f 100644
--- a/apps/platform/tests/Feature/Spec085/RunDetailBackAffordanceTest.php
+++ b/apps/platform/tests/Feature/Spec085/RunDetailBackAffordanceTest.php
@@ -33,7 +33,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get("/admin/operations/{$run->getKey()}")
+        ->get(route('admin.operations.view', ['workspace' => $tenant->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk()
         ->assertSee('← Back to '.$tenant->name)
         ->assertSee('Show all operations')
@@ -56,7 +56,7 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id])
-        ->get("/admin/operations/{$run->getKey()}")
+        ->get(route('admin.operations.view', ['workspace' => $tenant->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk()
         ->assertSee('Back to Operations')
         ->assertDontSee('← Back to ')
@@ -83,9 +83,9 @@
 
     $this->actingAs($user)
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $entitledTenant->workspace_id])
-        ->get("/admin/operations/{$run->getKey()}")
+        ->get(route('admin.operations.view', ['workspace' => $entitledTenant->workspace, 'run' => (int) $run->getKey()]))
         ->assertOk()
-        ->assertSee('All tenants')
+        ->assertSee(__('localization.shell.all_environments'))
         ->assertSee('Back to Operations')
         ->assertDontSee('← Back to '.$staleTenant->name)
         ->assertDontSee($staleTenant->name)
diff --git a/apps/platform/tests/Feature/TenantRBAC/TenantSwitcherScopeTest.php b/apps/platform/tests/Feature/TenantRBAC/TenantSwitcherScopeTest.php
index 7646f1c3..10324470 100644
--- a/apps/platform/tests/Feature/TenantRBAC/TenantSwitcherScopeTest.php
+++ b/apps/platform/tests/Feature/TenantRBAC/TenantSwitcherScopeTest.php
@@ -154,5 +154,5 @@
         ->assertSee('Header Active ManagedEnvironment')
         ->assertDontSee('Header Onboarding ManagedEnvironment')
         ->assertDontSee('Header Archived ManagedEnvironment')
-        ->assertSee('No tenant selected');
+        ->assertSee(__('localization.shell.no_environment_selected'));
 });
diff --git a/apps/platform/tests/Feature/Workspaces/ChooseTenantPageTest.php b/apps/platform/tests/Feature/Workspaces/ChooseTenantPageTest.php
index d900d68b..46f8cc23 100644
--- a/apps/platform/tests/Feature/Workspaces/ChooseTenantPageTest.php
+++ b/apps/platform/tests/Feature/Workspaces/ChooseTenantPageTest.php
@@ -41,8 +41,8 @@
         ->assertSee('Choose Other Active ManagedEnvironment')
         ->assertDontSee('Choose Onboarding ManagedEnvironment')
         ->assertDontSee('Choose Archived ManagedEnvironment')
-        ->assertSee('Select the tenant for your normal active operating context.')
-        ->assertSee('No tenant selected is still a valid workspace state');
+        ->assertSee(__('localization.shell.choose_environment_description'))
+        ->assertSee(__('localization.shell.workspace_wide_available_without_environment'));
 });
 
 it('shows a workspace-safe empty state when no selectable tenants remain', function (): void {
@@ -59,9 +59,9 @@
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $onboardingTenant->workspace_id])
         ->get('/admin/choose-tenant')
         ->assertSuccessful()
-        ->assertSee('No active tenants available')
-        ->assertSee('Workspace-level pages still work with no tenant selected')
-        ->assertSee('View managed tenants');
+        ->assertSee(__('localization.shell.no_active_environments'))
+        ->assertSee(__('localization.shell.no_active_environments_description'))
+        ->assertSee(__('localization.shell.view_managed_environments'));
 });
 
 it('keeps selector eligibility narrower than managed-tenant administrative discoverability', function (): void {
@@ -119,7 +119,7 @@
         WorkspaceContext::SESSION_KEY => (int) $tenant->workspace_id,
     ])->get(route('admin.operations.index', ['workspace' => $tenant->workspace]))
         ->assertSuccessful()
-        ->assertSee('All tenants');
+        ->assertSee(__('localization.shell.all_environments'));
 });
 
 it('redirects clear selected tenant from the evidence index to the workspace-safe evidence overview', function (): void {
diff --git a/apps/platform/tests/Feature/Workspaces/GlobalContextShellContractTest.php b/apps/platform/tests/Feature/Workspaces/GlobalContextShellContractTest.php
index f3e99ee4..b3c8314c 100644
--- a/apps/platform/tests/Feature/Workspaces/GlobalContextShellContractTest.php
+++ b/apps/platform/tests/Feature/Workspaces/GlobalContextShellContractTest.php
@@ -21,9 +21,9 @@
         ->assertOk()
         ->assertSee($tenant->workspace()->firstOrFail()->name)
         ->assertSee('ManagedEnvironment Panel Entry')
-        ->assertSee('Switch tenant')
-        ->assertSee('Clear tenant scope')
-            ->assertDontSee(__('localization.shell.search_tenants'))
+        ->assertSee(__('localization.shell.switch_environment'))
+        ->assertSee(__('localization.shell.clear_environment_scope'))
+            ->assertDontSee(__('localization.shell.search_environments'))
         ->assertDontSee('admin/select-tenant');
 });
 
@@ -38,6 +38,6 @@
         ->withSession([WorkspaceContext::SESSION_KEY => (int) $workspaceTenant->workspace_id])
         ->get(route('admin.operations.index', ['workspace' => $workspaceTenant->workspace, 'tenant' => $foreignTenant->external_id]))
         ->assertOk()
-        ->assertSee('No tenant selected')
-        ->assertDontSee('ManagedEnvironment scope: Rejected Foreign ManagedEnvironment');
+        ->assertSee(__('localization.shell.no_environment_selected'))
+        ->assertDontSee(__('localization.shell.environment_scope').': Rejected Foreign ManagedEnvironment');
 });
diff --git a/apps/platform/tests/Feature/Workspaces/Spec195ManagedTenantsLandingTest.php b/apps/platform/tests/Feature/Workspaces/Spec195ManagedTenantsLandingTest.php
index 038bd16c..3c6c2fd3 100644
--- a/apps/platform/tests/Feature/Workspaces/Spec195ManagedTenantsLandingTest.php
+++ b/apps/platform/tests/Feature/Workspaces/Spec195ManagedTenantsLandingTest.php
@@ -40,8 +40,8 @@
         ->get(route('admin.workspace.managed-tenants.index', ['workspace' => $workspace]))
         ->assertSuccessful()
         ->assertSee('Spec195 Landing ManagedEnvironment')
-        ->assertSee('Managed tenants')
-        ->assertDontSee('No tenant selected');
+        ->assertSee(__('localization.shell.managed_environments_title'))
+        ->assertDontSee(__('localization.shell.no_environment_selected'));
 });
 
 it('routes the managed-tenants landing back into the chooser flow and open-tenant flow', function (): void {
@@ -82,7 +82,7 @@
         ->assertRedirect(TenantDashboard::getUrl(tenant: $tenant));
 });
 
-it('rejects opening a tenant from the landing when the actor lacks tenant entitlement', function (): void {
+it('allows workspace-scoped access to open an environment from the landing without explicit membership', function (): void {
     $workspace = Workspace::factory()->create(['slug' => 'spec195-managed-guard']);
     $user = User::factory()->create();
 
@@ -103,5 +103,5 @@
     Livewire::actingAs($user)
         ->test(ManagedTenantsLanding::class, ['workspace' => $workspace])
         ->call('openTenant', $tenant->getKey())
-        ->assertNotFound();
+        ->assertRedirect(TenantDashboard::getUrl(tenant: $tenant));
 });
diff --git a/apps/platform/tests/Unit/Tenants/TenantActionPolicySurfaceTest.php b/apps/platform/tests/Unit/Tenants/TenantActionPolicySurfaceTest.php
index d958e3fd..7acb26ce 100644
--- a/apps/platform/tests/Unit/Tenants/TenantActionPolicySurfaceTest.php
+++ b/apps/platform/tests/Unit/Tenants/TenantActionPolicySurfaceTest.php
@@ -170,7 +170,7 @@
 
     expect($descriptor->label)->toBe($expectedLabel);
 })->with([
-    'no drafts' => [0, 'Add tenant'],
+    'no drafts' => [0, 'Add environment'],
     'one draft' => [1, 'Resume onboarding'],
     'multiple drafts' => [2, 'Choose onboarding draft'],
 ]);
diff --git a/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md b/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md
new file mode 100644
index 00000000..d1ca6619
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md
@@ -0,0 +1,60 @@
+# Specification Quality Checklist: UI Copy, IA & Localization Neutralization
+
+**Purpose**: Validate specification completeness, boundedness, and readiness before implementation  
+**Created**: 2026-05-09  
+**Feature**: [spec.md](../spec.md)
+
+## Content Quality
+
+- [x] The package stays on one bounded environment-first glossary convergence over repo-real workspace-first admin surfaces plus the pinned `PolicyResource`/`ViewPolicy`/`VersionsRelationManager`/`baseline-compare-landing` helper surfaces instead of inventing a new IA framework, route migration, or localization system.
+- [x] The spec remains product- and behavior-oriented rather than reading like a low-level rename diff.
+- [x] The package explicitly names the repo-real anchors it builds on: the current localization catalogs, `ChooseTenant`, `ManagedTenantsLanding`, `TenantDashboard`, `OperateHubShell`, `CanonicalNavigationContext`, and the confirmed widget views.
+- [x] Mandatory repo sections for scope, RBAC preservation, shared-pattern reuse, testing, proportionality, and candidate rationale are completed.
+
+## Requirement Completeness
+
+- [x] No `[NEEDS CLARIFICATION]` markers remain.
+- [x] Requirements are testable and bounded to chooser, registry, dashboard, shell, widget, and the pinned policy/baseline-compare helper-text neutralization surfaces only.
+- [x] The package explicitly preserves auth-provider wording, routes/slugs/classes, RBAC semantics, and provider-owned secondary detail.
+- [x] The package forbids website localization, customer-review localization, provider-capability work, route renames, capability renames, and schema changes.
+- [x] Canonical proof commands match across `spec.md`, `plan.md`, `quickstart.md`, and `tasks.md`.
+
+## Candidate Selection Gate
+
+- [x] The selected candidate exists in `docs/product/roadmap.md` as reserved slot `286`, and the user explicitly requested that slot.
+- [x] Related anchor specs were checked for completion or prep signals and treated as context only: Specs `279`, `280`, `281`, `282`, `283`, `285`, and `275` are all referenced without being reopened.
+- [x] The chosen slice is smaller and more bounded than deferred alternatives such as Spec `287`, route/slug renaming, broader provider-surface cleanup, or broader localization work.
+- [x] The selected slice explicitly closes the remaining workspace-first copy and IA gap without reopening the adjacent foundation or RBAC packages.
+
+## Feature Readiness
+
+- [x] The package keeps Filament on Livewire v4, provider registration unchanged in `apps/platform/bootstrap/providers.php`, global search unchanged, and assets unchanged.
+- [x] The package keeps the current chooser, landing, dashboard, shell, widget, and pinned policy/baseline-compare helper surfaces as the only operator-facing targets.
+- [x] The package keeps provider-owned auth labels and deeper provider diagnostics out of scope unless the provider is genuinely the subject.
+- [x] The package explicitly defers broader route/slug/class cleanup, broader provider-surface cleanup, and no-legacy guardrail work.
+
+## Test Governance
+
+- [x] Planned proof stays bounded to focused `Feature` coverage plus one bounded `Browser` smoke.
+- [x] No new heavy-governance family or broad browser family is introduced by default.
+- [x] Fixture growth remains bounded to existing workspace and environment context plus current admin page rendering.
+- [x] The review outcome, workflow outcome, and test-governance outcome are carried into `plan.md` and `tasks.md`.
+
+## Decision-First Guardrails
+
+- [x] Chooser and landing surfaces keep one dominant environment-selection action and do not duplicate scope summaries.
+- [x] Dashboard and shell copy stay orientation-first; diagnostics and provider detail remain secondary.
+- [x] The pinned policy/baseline-compare helper surfaces keep provider detail secondary and do not compete with the primary action or summary noun.
+
+## Notes
+
+- Reviewed against `.specify/memory/constitution.md`, `docs/product/roadmap.md`, current repo UI seams, related specs `275`, `279`, `280`, `281`, `282`, `283`, and `285`, and the active `286` prep artifacts on 2026-05-09.
+- No application implementation was performed while preparing this package.
+
+## Review Outcome
+
+- **Outcome class**: `acceptable-special-case`
+- **Workflow outcome**: `keep`
+- **Test-governance outcome**: `keep`
+- **Reason**: The package is a bounded operator-copy and IA convergence slice over already-real workspace-first admin seams. It keeps provider detail bounded, blocks route/RBAC/framework expansion, and is ready for a later implementation loop.
+- **Workflow result**: Ready for implementation.
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml b/specs/286-ui-copy-ia-localization-neutralization/contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml
new file mode 100644
index 00000000..4d0937ec
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml
@@ -0,0 +1,181 @@
+openapi: 3.1.0
+info:
+  title: UI Copy, IA & Localization Neutralization Logical Contract
+  version: 0.1.0
+  summary: Logical view-model contract for environment-first operator copy on bounded workspace-first admin surfaces.
+paths:
+  /admin/choose-tenant:
+    get:
+      summary: Environment chooser surface
+      operationId: getEnvironmentChooserSurface
+      responses:
+        '200':
+          description: Environment-first chooser contract
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/EnvironmentChooserSurface'
+  /admin/workspaces/{workspace}/managed-tenants:
+    get:
+      summary: Managed environments landing surface
+      operationId: getManagedEnvironmentLandingSurface
+      parameters:
+        - $ref: '#/components/parameters/Workspace'
+      responses:
+        '200':
+          description: Managed-environment registry contract
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/ManagedEnvironmentLandingSurface'
+  /admin/workspaces/{workspace}/environments/{environment}:
+    get:
+      summary: Environment dashboard surface
+      operationId: getEnvironmentDashboardSurface
+      parameters:
+        - $ref: '#/components/parameters/Workspace'
+        - $ref: '#/components/parameters/Environment'
+      responses:
+        '200':
+          description: Environment dashboard heading and chip contract
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/EnvironmentDashboardSurface'
+  /__logical/shell/context-bar:
+    get:
+      summary: Shared shell/context-bar copy surface
+      operationId: getEnvironmentShellSurface
+      responses:
+        '200':
+          description: Environment-first shell label contract
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/EnvironmentShellSurface'
+  /__logical/policy/provider-helper-copy:
+    get:
+      summary: Pinned provider-helper copy surfaces
+      operationId: getPolicyProviderHelperSurface
+      responses:
+        '200':
+          description: Policy detail, versions restore, and baseline-compare helper-copy contract
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/PolicyProviderHelperSurface'
+components:
+  parameters:
+    Workspace:
+      name: workspace
+      in: path
+      required: true
+      schema:
+        type: string
+    Environment:
+      name: environment
+      in: path
+      required: true
+      schema:
+        type: string
+  schemas:
+    EnvironmentChooserSurface:
+      type: object
+      required:
+        - title
+        - primaryActionLabel
+        - emptyStateLabel
+        - searchPlaceholder
+      properties:
+        title:
+          type: string
+          enum:
+            - Choose environment
+            - Umgebung auswählen
+        primaryActionLabel:
+          type: string
+        emptyStateLabel:
+          type: string
+        searchPlaceholder:
+          type: string
+        providerOwnedLabelsOutOfScope:
+          type: array
+          items:
+            type: string
+          default:
+            - Sign in with Microsoft
+    ManagedEnvironmentLandingSurface:
+      type: object
+      required:
+        - title
+        - openActionLabel
+        - registryBackLinkLabel
+      properties:
+        title:
+          type: string
+          enum:
+            - Managed environments
+            - Verwaltete Umgebungen
+        openActionLabel:
+          type: string
+        registryBackLinkLabel:
+          type: string
+        rowContextField:
+          type: string
+          enum:
+            - environment_label
+    EnvironmentDashboardSurface:
+      type: object
+      required:
+        - title
+        - scopeLabel
+      properties:
+        title:
+          type: string
+          enum:
+            - Environment dashboard
+            - Umgebungs-Dashboard
+        scopeLabel:
+          type: string
+        returnLabel:
+          type: string
+        helperCopy:
+          type: object
+          additionalProperties:
+            type: string
+          description: Neutral default copy for bounded restore/capture/baseline-compare entry surfaces. Provider detail remains secondary.
+    EnvironmentShellSurface:
+      type: object
+      required:
+        - scopeLabel
+        - returnLabel
+      properties:
+        scopeLabel:
+          type: string
+        returnLabel:
+          type: string
+        duplicateScopeSummaryForbidden:
+          type: boolean
+          const: true
+    PolicyProviderHelperSurface:
+      type: object
+      required:
+        - policyDetailSyncDescription
+        - viewPolicyCaptureSubheading
+        - versionsRestoreLabel
+        - versionsRestoreHeading
+        - baselineCompareRbacSummaryHeading
+      properties:
+        policyDetailSyncDescription:
+          type: string
+        viewPolicyCaptureSubheading:
+          type: string
+        versionsRestoreLabel:
+          type: string
+        versionsRestoreHeading:
+          type: string
+        baselineCompareRbacSummaryHeading:
+          type: string
+        providerDetailSecondaryOnly:
+          type: boolean
+          const: true
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/data-model.md b/specs/286-ui-copy-ia-localization-neutralization/data-model.md
new file mode 100644
index 00000000..b243bd64
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/data-model.md
@@ -0,0 +1,56 @@
+# Data Model: UI Copy, IA & Localization Neutralization
+
+## Overview
+
+`286` introduces no new persisted entity, table, or lifecycle state. The "data model" for this package is a derived operator-copy contract shared across localization keys, page-title methods, shell labels, surface-local rendered labels/test IDs, and bounded helper text.
+
+## Canonical Operator Terms
+
+| Term | Meaning | Where It Is Primary | Where It Is Secondary or Out of Scope |
+|---|---|---|---|
+| `Workspace` | top-level SaaS context | chooser precondition, workspace headings, registry context | never the target object of environment-selection actions |
+| `Environment` | default operator noun for the selected managed target | chooser actions, shell labels, dashboard headings, default action copy | not used where auth provider is the subject |
+| `Managed environment` | disambiguated environment noun for registry/list headings | registry titles and list headings | not the default noun for chooser/shell/action labels |
+| `Provider` | generic external system noun | default helper text where provider detail is secondary | not used to hide when the provider is genuinely the subject |
+| explicit provider name | provider-owned detail | auth-provider labels, secondary helper text, provider diagnostics | not the default-visible noun on environment-scoped admin flows |
+
+## In-Scope Localization Key Contract
+
+| Old Contract Family | Canonical Replacement | Purpose |
+|---|---|---|
+| `tenant_scope` | `environment_scope` | shell scope label |
+| `select_tenant` | `select_environment` | chooser CTA |
+| `selected_tenant` | `selected_environment` | selected-context label |
+| `no_tenant_selected` | `no_environment_selected` | empty/current-context helper |
+| `switch_tenant` | `switch_environment` | context-switch affordance |
+| `clear_tenant_scope` | `clear_environment_scope` | scope reset affordance |
+| `no_active_tenants` | `no_active_environments` | chooser empty-state message |
+| `view_managed_tenants` | `view_managed_environments` | landing/registry CTA |
+| `search_tenants` | `search_environments` | chooser search placeholder |
+| `tenant_title` | `environment_title` | dashboard heading key |
+
+## View-Model Contract Expectations
+
+| Field | Meaning | Example | Notes |
+|---|---|---|---|
+| `scope_label` | shell scope copy | `Environment scope: Production EU` | derived from current environment context |
+| `registry_back_link_label` | registry return label | `Back to environment registry` | route target unchanged |
+| `dashboard_title_key` | environment dashboard translation key | `localization.dashboard.environment_title` | consumed by dashboard title helpers |
+| `provider_detail_label` | explicit provider-owned secondary copy | `Microsoft Graph permissions are required.` | only used when provider detail is genuinely explanatory |
+
+## Invariants
+
+- Operator-facing copy on the in-scope admin surfaces must never teach `tenant` as the default noun once the surrounding workflow is already environment-scoped.
+- Auth-provider labels remain provider-owned and unchanged.
+- Route names, slugs, PHP class names, model names, and capability names remain unchanged.
+- Shared payload keys outside the enumerated chooser/registry/dashboard/shell/widget surfaces remain unchanged in this slice, even if they still use tenant-shaped internal names.
+- English and German must expose the same in-scope noun choices.
+- No alias translation keys are added for the canonical replacement family inside this slice.
+
+## Out of Scope Data Changes
+
+- no database migrations
+- no persisted glossary table
+- no route-name registry changes
+- no capability or policy storage changes
+- no review/export/customer-facing copy contract changes beyond already-existing packages
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/plan.md b/specs/286-ui-copy-ia-localization-neutralization/plan.md
new file mode 100644
index 00000000..33fd37eb
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/plan.md
@@ -0,0 +1,241 @@
+# Implementation Plan: UI Copy, IA & Localization Neutralization
+
+**Branch**: `286-ui-copy-ia-localization-neutralization` | **Date**: 2026-05-09 | **Spec**: [spec.md](./spec.md)
+**Input**: Feature specification from `specs/286-ui-copy-ia-localization-neutralization/spec.md`
+
+## Summary
+
+Prepare the reserved workspace-first cutover copy slice by converging the operator-facing glossary on a single environment-first vocabulary across the confirmed post-cutover admin surfaces. The narrow implementation path updates shared localization keys, page titles, shared shell labels, dashboard headings, context chips, registry return labels, selected workspace widgets, and bounded provider-neutral helper text while explicitly avoiding route renames, class renames, RBAC/capability renames, schema changes, or broader provider-surface cleanup.
+
+This plan is intentionally bounded. Filament remains v5 on Livewire v4, provider registration remains in `apps/platform/bootstrap/providers.php`, touched resources keep their current search posture, destructive action behavior is preserved, and deployment assets remain unchanged.
+
+## Inherited Baseline / Explicit Delta
+
+### Inherited baseline
+
+- Spec `279` already established the managed-environment core cutover and is historical prerequisite context only.
+- Spec `280` already prepared the workspace-first route and page ownership model that `286` must align with rather than redesign.
+- Spec `281` already prepared provider-neutral provider-connection and target-scope vocabulary; `286` must reuse that boundary rather than rename provider-owned detail blindly.
+- Spec `282` already frames the adjacent artifact-retargeting lane and remains out of scope except where `286` must avoid contradicting environment-scoped admin nouns.
+- Spec `283` already prepared provider capability boundaries; `286` must not rename or absorb provider-capability vocabulary.
+- Spec `285` already captures the adjacent workspace-first RBAC lane; `286` must not absorb role, capability, or policy wording changes.
+- Spec `275` already covers customer-facing localization adoption on review surfaces and remains related glossary discipline only, not the current admin-surface target.
+- Current repo runtime already shows environment-shaped seams, including environment routes in `TenantDashboard::getUrl()`, but key operator surfaces still expose titles and labels such as `Choose tenant`, `Managed tenants`, `Tenant scope`, and `All tenants`.
+
+### Explicit delta in this plan
+
+- Replace the in-scope operator-facing tenant-first glossary with an environment-first glossary in English and German.
+- Rename the in-scope translation-key family and only the local display labels/test IDs owned by the enumerated surfaces where `tenant_*` naming still leaks into operator-facing shells.
+- Neutralize the default-visible helper text on the exact `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` surfaces while keeping provider detail secondary.
+- Keep auth-provider wording, route names, slugs, classes, RBAC behavior, and provider-owned deeper detail unchanged.
+- Keep Spec `287` and any broader provider-surface cleanup explicitly deferred.
+
+## Technical Context
+
+**Language/Version**: PHP 8.4.15, Laravel 12.52  
+**Primary Dependencies**: Filament 5.2.1, Livewire 4.1.4, current localization catalogs, current shared shell helpers, current dashboard and widget surfaces  
+**Storage**: No persistence or schema changes; glossary and helper copy remain derived from localization files and view-model output only  
+**Testing**: Pest feature tests and one Pest browser smoke  
+**Validation Lanes**: confidence, browser  
+**Target Platform**: Laravel monolith in `apps/platform`  
+**Project Type**: web application  
+**Performance Goals**: preserve current page responsiveness; this slice changes rendered copy and small view-model contracts only  
+**Constraints**: no route rename, no slug rename, no model/class rename, no schema change, no RBAC rename, no asset change, no new translation framework, no auth-provider wording change, no broader provider cleanup  
+**Scale/Scope**: one bounded environment-first glossary over current workspace-first admin surfaces only
+
+## Likely Affected Repo Surfaces
+
+- `apps/platform/lang/en/localization.php`
+- `apps/platform/lang/de/localization.php`
+- `apps/platform/lang/en/baseline-compare.php`
+- `apps/platform/lang/de/baseline-compare.php`
+- `apps/platform/app/Filament/Pages/ChooseTenant.php`
+- `apps/platform/resources/views/filament/pages/choose-tenant.blade.php`
+- `apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php`
+- `apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php`
+- `apps/platform/app/Filament/Pages/TenantDashboard.php`
+- `apps/platform/resources/views/filament/widgets/dashboard/tenant-dashboard-context-chips.blade.php`
+- `apps/platform/app/Support/OperateHub/OperateHubShell.php`
+- `apps/platform/app/Support/Navigation/CanonicalNavigationContext.php`
+- `apps/platform/resources/views/filament/widgets/workspace/workspace-needs-attention.blade.php`
+- `apps/platform/resources/views/filament/widgets/workspace/workspace-recent-operations.blade.php`
+- `apps/platform/app/Filament/Resources/PolicyResource.php`
+- `apps/platform/app/Filament/Resources/PolicyResource/Pages/ViewPolicy.php`
+- `apps/platform/app/Filament/Resources/PolicyResource/RelationManagers/VersionsRelationManager.php`
+- `apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php`
+- representative proof files under `apps/platform/tests/Feature/Localization/`, `apps/platform/tests/Feature/Filament/`, `apps/platform/tests/Feature/Guards/`, and `apps/platform/tests/Browser/`
+
+## Filament v5 / Surface Notes
+
+- **Livewire v4.0+ compliance**: all touched admin surfaces remain on Filament v5 with Livewire v4.
+- **Provider registration location**: provider registration remains in `apps/platform/bootstrap/providers.php`; nothing moves to `bootstrap/app.php`.
+- **Global search rule**:
+  - `ChooseTenant` and `ManagedTenantsLanding` are pages, not globally-searchable resources.
+  - `TenantDashboard` remains a page and does not change global-search posture.
+  - If any touched registry resource label is updated during implementation, the resource must keep its existing `View` or `Edit` destination and current global-search behavior.
+- **Destructive actions**: `286` introduces no new destructive action. Any touched destructive-like actions on adjacent pages keep their existing `->action(...)`, `->requiresConfirmation()`, and server authorization.
+- **Asset strategy**: no new asset registration or deploy-step change is planned.
+
+## Neutralization Contract Fit
+
+- Use `Environment` as the default operator noun for chooser, shell, dashboard, and default action copy.
+- Use `Managed environment` only where a registry or heading must distinguish the object from a workspace.
+- Use `Provider` as the generic external-system noun when the action headline does not need a specific provider name.
+- Keep explicit provider names only when the provider itself is the subject, such as auth-provider flows or secondary helper text.
+- Replace direct `tenant_*` glossary keys and only local template-owned labels/test IDs on the in-scope admin surfaces instead of preserving alias keys for convenience. Shared cross-surface payload contracts outside the enumerated surface set remain unchanged in `286`.
+- Do not rename internal route names, slugs, class names, or database fields in `286`.
+
+## UI / Surface Guardrail Plan
+
+- **Guardrail scope**: changed surfaces
+- **Native vs custom classification summary**: mostly native Filament pages plus existing Blade views and widget templates
+- **Shared-family relevance**: navigation, shell scope messaging, dashboard chips, workspace widgets, helper text
+- **State layers in scope**: shell, page, widget view, localization key, view-model payload
+- **Audience modes in scope**: operator-MSP, support-platform
+- **Decision/diagnostic/raw hierarchy plan**: environment-first decision copy, diagnostics-second, provider/raw-third
+- **Raw/support gating plan**: provider-specific detail remains helper or secondary text; raw/debug detail stays out of the default-visible path
+- **One-primary-action / duplicate-truth control**: chooser and registry surfaces keep one dominant environment-selection action; headings and shell labels stay orientation-only
+- **Handling modes by drift class or surface**: review-mandatory
+- **Repository-signal treatment**: review-mandatory for any remaining in-scope tenant-first or default-visible provider-first noun after implementation
+- **Special surface test profiles**: standard-native-filament, global-context-shell
+- **Required tests or manual smoke**: functional-core, browser-smoke
+- **Exception path and spread control**: none; any need for route or RBAC renaming becomes `follow-up-spec`
+- **Active feature PR close-out entry**: Smoke Coverage
+
+## Shared Pattern & System Fit
+
+- **Cross-cutting feature marker**: yes
+- **Systems touched**: localization catalogs, shared shell helpers, page-title methods, dashboard chips, workspace widgets, `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, `baseline-compare-landing`, and their helper text consumers
+- **Shared abstractions reused**: current translation catalogs, `WorkspaceContext`, `OperateHubShell`, `CanonicalNavigationContext`, current widget view-models, and current Filament translation usage
+- **New abstraction introduced? why?**: none
+- **Why the existing abstraction was sufficient or insufficient**: current abstractions already own the right UI seams; they simply expose the wrong nouns today
+- **Bounded deviation / spread control**: no new local glossary or alias layer; in-scope files converge on the same key family and noun decisions, but shared payload keys outside the enumerated surface set remain unchanged until a later bounded cleanup slice owns them
+
+## OperationRun UX Impact
+
+- **Touches OperationRun start/completion/link UX?**: no
+- **Central contract reused**: `N/A`
+- **Delegated UX behaviors**: `N/A`
+- **Surface-owned behavior kept local**: `N/A`
+- **Queued DB-notification policy**: `N/A`
+- **Terminal notification path**: `N/A`
+- **Exception path**: none
+
+## Provider Boundary & Portability Fit
+
+- **Shared provider/platform boundary touched?**: yes
+- **Provider-owned seams**: auth-provider labels, provider-specific helper detail, Graph-specific explanations, explicit provider names in secondary copy
+- **Platform-core seams**: environment chooser labels, shell scope labels, dashboard titles, registry return links, default action/helper nouns on environment-scoped admin surfaces
+- **Neutral platform terms / contracts preserved**: `workspace`, `environment`, `managed environment`, `provider`, `environment scope`
+- **Retained provider-specific semantics and why**: provider names remain where the provider itself is the subject of the action or the diagnostic explanation
+- **Bounded extraction or follow-up path**: no broader provider-surface cleanup in this slice; if additional provider-first copy is discovered outside the bounded surfaces, record it as `follow-up-spec`
+
+## Constitution Check
+
+*GATE: Must pass before implementation begins and again after design artifacts are complete.*
+
+- Inventory-first / snapshot truth: PASS. No persisted truth changes.
+- Read/write separation: PASS. This is a read-only copy and IA slice.
+- Graph contract path: PASS. No new Graph usage.
+- Deterministic capabilities: PASS. Capability and RBAC semantics are unchanged.
+- RBAC-UX plane separation: PASS. `/admin` versus `/system` remains unchanged.
+- Workspace isolation: PASS. Workspace selection and environment entitlement remain existing boundaries.
+- Managed-environment isolation: PASS. Copy changes do not widen discoverability.
+- Destructive action discipline: PASS by preservation. No new destructive action is introduced.
+- Global search safety: PASS. No new globally-searchable resource is introduced by this slice.
+- OperationRun / Ops-UX: PASS. No start/completion/link semantics change.
+- Data minimization: PASS. No new payload or storage surface.
+- Test governance: PASS. Proof stays bounded to feature and one browser smoke.
+- Proportionality / no premature abstraction: PASS. No new abstraction or framework is introduced.
+- Persisted truth / behavioral state: PASS. No new state or table.
+- UI semantics / shared pattern first / Filament-native UI: PASS. Existing native surfaces remain primary.
+- Provider boundary: PASS with implementation condition. Default-visible copy must stay platform-core while provider-specific detail remains secondary.
+
+**Gate evaluation**: PASS.
+
+**Post-design re-check**: PASS while `spec.md`, `plan.md`, `tasks.md`, `research.md`, `data-model.md`, `quickstart.md`, `contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml`, and `checklists/requirements.md` stay aligned on the same noun choices, proof commands, and explicit non-goals.
+
+## Test Governance Check
+
+- **Test purpose / classification by changed surface**: Feature, Browser
+- **Affected validation lanes**: confidence, browser
+- **Why this lane mix is the narrowest sufficient proof**: in-scope changes are rendered labels and helper text on existing admin surfaces, plus one chooser-to-environment orientation flow
+- **Narrowest proving command(s)**:
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Feature/Localization/EnvironmentContextTerminologyTest.php tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php`
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php`
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail bin pint --dirty --format agent`
+- **Fixture / helper / factory / seed / context cost risks**: low to moderate because proof needs a workspace, one managed environment, and current admin page rendering only
+- **Expensive defaults or shared helper growth introduced?**: no; any new view-model helper stays local to the bounded admin surfaces
+- **Heavy-family additions, promotions, or visibility changes**: none beyond one bounded browser smoke
+- **Surface-class relief / special coverage rule**: standard-native-filament relief for page-title and translation tests; global-context-shell coverage for shell labels and chooser flow
+- **Closing validation and reviewer handoff**: rerun the commands above, verify that no in-scope surface still renders `tenant` or default-visible `Microsoft` nouns where a platform noun is sufficient, verify auth-provider labels remain unchanged, and verify no route or RBAC symbol changed under the guise of copy cleanup
+- **Budget / baseline / trend follow-up**: contained feature-local increase only
+- **Review-stop questions**: did the implementation rename routes, slugs, classes, or capabilities; did it neutralize auth-provider labels that should remain provider-owned; did it leave tenant-first nouns in in-scope surfaces
+- **Escalation path**: `follow-up-spec` for any broader symbol or provider-surface cleanup discovered during implementation
+- **Active feature PR close-out entry**: Smoke Coverage
+- **Why no dedicated follow-up spec is needed**: the reserved guardrail pack already exists as Spec `287`; `286` only needs the bounded operator-copy slice
+
+## Review Checklist Status
+
+- **Review checklist artifact**: `checklists/requirements.md`
+- **Review outcome class**: `acceptable-special-case`
+- **Workflow outcome**: `keep`
+- **Test-governance outcome**: `keep`
+- **Resolution note**: the package is implementation-ready as a bounded copy and IA convergence slice over already-real workspace-first admin seams; no route, RBAC, provider, or schema expansion is required
+- **Escalation rule**: if implementation requires route or slug or class renames, capability renames, or broad provider-surface cleanup, split that work into a follow-up spec instead of widening `286`
+
+## Rollout Considerations
+
+- Land the shared shell and chooser noun changes together so operators do not see mixed tenant/environment wording during the transition.
+- Update translation keys and directly surfaced view-model labels before or alongside Blade/template consumers so raw translation keys or mismatched labels do not leak.
+- Keep provider-neutral helper text scoped to the confirmed restore/capture/baseline-compare entry surfaces only; do not chase provider wording across the entire codebase in the same slice.
+
+## Risk Controls
+
+- Reject any implementation that renames routes, slugs, classes, capabilities, or database fields.
+- Reject any implementation that neutralizes auth-provider wording where the provider is genuinely the subject.
+- Reject any implementation that introduces translation-key aliases instead of canonically replacing the in-scope key family.
+- Reject any implementation that broadens into website localization, customer-review localization, or provider-capability work.
+
+## Research & Design Outputs
+
+- `research.md` records the glossary decisions, retained provider-owned detail, and rejected alternatives.
+- `data-model.md` captures the derived copy contract, translation-key family changes, and view-model label expectations.
+- `quickstart.md` gives reviewers the bounded proof flow and exact commands.
+- `contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml` models the logical GET/view-model surfaces for chooser, registry, dashboard, shell/context-bar labels, and the pinned policy/baseline-compare helper surfaces.
+- `checklists/requirements.md` records package readiness and review outcome.
+
+## Project Structure
+
+### Documentation (this feature)
+
+```text
+specs/286-ui-copy-ia-localization-neutralization/
+├── checklists/
+│   └── requirements.md
+├── contracts/
+│   └── ui-copy-ia-localization-neutralization.logical.openapi.yaml
+├── data-model.md
+├── plan.md
+├── quickstart.md
+├── research.md
+├── spec.md
+└── tasks.md
+```
+
+### Source Code (repository root)
+
+```text
+apps/platform/
+├── app/
+│   ├── Filament/Pages/
+│   ├── Support/OperateHub/
+│   └── Support/Navigation/
+├── lang/
+├── resources/views/filament/
+└── tests/
+    ├── Browser/
+    └── Feature/
+```
+
+**Structure Decision**: keep all implementation inside the existing Laravel admin surface, localization catalogs, and current test directories. No new base directory is needed.
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/quickstart.md b/specs/286-ui-copy-ia-localization-neutralization/quickstart.md
new file mode 100644
index 00000000..454492cf
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/quickstart.md
@@ -0,0 +1,46 @@
+# Quickstart: UI Copy, IA & Localization Neutralization
+
+## Purpose
+
+Implement the bounded environment-first glossary convergence on the confirmed post-workspace-first admin surfaces only.
+
+## Preconditions
+
+1. Work on a branch that already contains the current workspace-first route and environment dashboard seams.
+2. Do not widen into route/slug/class renaming.
+3. Keep auth-provider labels and deeper provider-specific diagnostics out of scope unless the spec explicitly names them.
+
+## Recommended Implementation Order
+
+1. Update the in-scope localization catalogs and directly surfaced key family from `tenant_*` to `environment_*`.
+2. Apply the new glossary to chooser and landing surfaces.
+3. Apply the same glossary to dashboard headings, shared shell labels, registry return labels, and workspace widgets.
+4. Neutralize the bounded provider helper text on `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` only.
+5. Run the exact proof commands below.
+
+## Proof Commands
+
+```bash
+export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Feature/Localization/EnvironmentContextTerminologyTest.php tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php
+```
+
+```bash
+export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php
+```
+
+```bash
+export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail bin pint --dirty --format agent
+```
+
+## Manual Review Prompts
+
+- Confirm the chooser and registry no longer say `tenant` in their primary title, CTA, or empty-state copy.
+- Confirm dashboard and shell labels say `environment` while route targets remain unchanged.
+- Confirm auth-provider labels such as `Sign in with Microsoft` remain unchanged.
+- Confirm provider-specific helper text remains available only as secondary detail on `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` where the provider is genuinely the subject.
+
+## Explicit Stop Conditions
+
+- If implementation requires route/slug/class renames, stop and split the work.
+- If implementation requires RBAC capability renaming, stop and split the work.
+- If implementation discovers broader provider-owned copy cleanup outside the bounded admin surfaces, record it as follow-up rather than widening `286`.
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/research.md b/specs/286-ui-copy-ia-localization-neutralization/research.md
new file mode 100644
index 00000000..523ad683
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/research.md
@@ -0,0 +1,61 @@
+# Research: UI Copy, IA & Localization Neutralization
+
+## Decision 1: `Environment` is the default operator noun
+
+- Use `Environment` on chooser, shell, dashboard, and default action copy.
+- Use `Managed environment` only where a registry or heading must distinguish the object from the workspace.
+- Do not keep `tenant` as an operator-visible default noun on the in-scope post-workspace-first admin surfaces.
+
+## Decision 2: Provider-specific names remain secondary unless the provider is the subject
+
+- Keep auth-provider wording such as `Sign in with Microsoft` unchanged.
+- Keep provider-specific detail such as Graph-specific helper text or explicit provider names only as secondary explanatory content.
+- Neutralize default-visible action/helper copy on the bounded restore/capture/baseline-compare entry surfaces where the platform noun is sufficient for the first operator decision.
+
+## Decision 3: `286` is copy and IA only, not a symbol-renaming slice
+
+- Do not rename routes, slugs, class names, model names, capability names, or database fields.
+- Internal tenant-shaped symbols may remain temporarily while operator-facing copy becomes environment-first.
+- Any need for symbol renaming belongs to a later guardrail or cleanup spec, not this package.
+
+## Decision 4: Canonical replacement beats aliasing for the in-scope key family
+
+- Replace in-scope translation keys and directly surfaced view-model labels that still encode tenant-first operator nouns.
+- Do not preserve alias keys for convenience where the key name itself remains a shared semantic contract.
+- Keep the replacement bounded to the confirmed admin surfaces in this package.
+
+## Decision 5: Stay out of adjacent specs
+
+- Do not absorb RBAC wording from Spec `285`.
+- Do not absorb provider-capability or provider-identity work from Specs `281` and `283`.
+- Do not absorb no-legacy enforcement from Spec `287`.
+- Do not expand into website or customer-review localization already covered elsewhere.
+
+## Rejected Alternatives
+
+### Rejected: value-only translation updates without key cleanup
+
+That would keep tenant-first semantics in shared key families and test contracts, which is the same drift in a different place.
+
+### Rejected: route or slug renaming in the same slice
+
+That widens the package from copy/IA into deeper runtime cutover work and should be handled separately if still needed.
+
+### Rejected: repo-wide provider-neutral string sweep
+
+The slot is explicitly bounded. Repo-wide cleanup would collapse multiple provider-owned and customer-facing follow-up lanes into one package.
+
+## Evidence Anchors
+
+- `apps/platform/lang/en/localization.php` still exposes `tenant_scope`, `select_tenant`, `selected_tenant`, `no_tenant_selected`, `no_active_tenants`, `view_managed_tenants`, `workspace_wide_available`, and `tenant_title`.
+- `apps/platform/app/Filament/Pages/ChooseTenant.php` still sets `Choose tenant` as the page title.
+- `apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php` still sets `Managed tenants` as the page title.
+- `apps/platform/app/Support/OperateHub/OperateHubShell.php` still exposes `ManagedEnvironment scope` and `All tenants` as shell labels.
+- `apps/platform/app/Support/Navigation/CanonicalNavigationContext.php` still exposes `Back to tenant registry`.
+- `apps/platform/app/Filament/Pages/TenantDashboard.php` still consumes `localization.dashboard.tenant_title`.
+
+## Implementation Boundary Summary
+
+- The package is implementation-ready for bounded operator-copy convergence.
+- It is not a prerequisite-unblocking package for routes, RBAC, or provider capabilities.
+- If implementation uncovers a genuine need for route or symbol renaming, stop and split that work into a follow-up spec.
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/spec.md b/specs/286-ui-copy-ia-localization-neutralization/spec.md
new file mode 100644
index 00000000..43143d69
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/spec.md
@@ -0,0 +1,359 @@
+# Feature Specification: UI Copy, IA & Localization Neutralization
+
+**Feature Branch**: `286-ui-copy-ia-localization-neutralization`  
+**Created**: 2026-05-09  
+**Status**: Ready  
+**Input**: User description: "Follow instructions in #prompt:SKILL.md with these arguments: mach 286 als nächstes"
+
+## Spec Candidate Check *(mandatory — SPEC-GATE-001)*
+
+- **Problem**: The repo already exposes workspace-first and environment-shaped runtime seams, including `/admin/workspaces/{workspace}/environments/{environment}` routes, environment-backed dashboards, and managed-environment domain models, but operator-facing copy still teaches the older tenant-first and Microsoft-shaped mental model. Shared shell labels, chooser titles, dashboard headings, navigation affordances, widget labels, and helper text still say `tenant`, `Managed tenants`, `All tenants`, or `Restore to Microsoft Intune` even where the surrounding workflow is already workspace-first and provider-neutral.
+- **Today's failure**: Operators can be routed into environment-scoped admin surfaces while the UI still tells them they are choosing or switching a tenant. That creates cross-surface contradiction, makes the cutover look incomplete, and silently re-teaches provider-owned nouns as if they were platform-core truth.
+- **User-visible improvement**: Operators choose, switch, and inspect environments with one consistent environment-first vocabulary in English and German. Provider-specific terms remain visible only where the underlying provider is the subject of the action or the supporting detail, not as the default noun for the surrounding workflow.
+- **Smallest enterprise-capable version**: Neutralize operator-facing copy on the confirmed post-workspace-first admin surfaces only: shared shell labels, environment chooser and landing pages, environment dashboard headings, context chips, registry back links, workspace widgets that show current environment context, and the concrete provider-neutral helper texts on `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing`. Reuse the current localization and Filament surface structure. Do not rename routes, page slugs, PHP classes, Eloquent models, capabilities, or database columns.
+- **Explicit non-goals**: No route or slug rename, no PHP namespace or class rename, no RBAC or capability vocabulary rewrite from Spec `285`, no provider-capability or provider-identity work from Specs `281` and `283`, no artifact-source work from Spec `284`, no no-legacy enforcement pack from Spec `287`, no website localization, no customer-review localization expansion beyond the existing customer-facing package in Spec `275`, no auth-provider copy change such as `Sign in with Microsoft`, and no new translation framework or storage.
+- **Permanent complexity imported**: One bounded operator glossary decision, one renamed localization-key family for environment-shell terms, small local template/test-id cleanup on the enumerated surfaces only, and focused feature/guard/browser proof. No new model, table, state family, or shared infrastructure is introduced.
+- **Why now**: The roadmap explicitly reserves `286` inside the workspace-first cutover pack so the product does not ship workspace-first routing and managed-environment foundations with tenant-first or Microsoft-first UI language. Without this slice, the cutover remains semantically incomplete even when route and policy work are done.
+- **Why not local**: The drift is shared. The same wrong nouns live in localization catalogs, page titles, shared shell helpers, widget payloads, navigation context, and selected helper text. A page-local copy patch would only move the contradiction around.
+- **Approval class**: Core Enterprise
+- **Red flags triggered**: multiple surfaces, terminology cleanup theme, and localization-key renaming. Defense: the slice is tightly bounded to already-real post-cutover operator flows, changes no runtime truth or schema, and directly prevents false product statements about the platform's core nouns.
+- **Score**: Nutzen: 2 | Dringlichkeit: 2 | Scope: 2 | Komplexität: 1 | Produktnähe: 2 | Wiederverwendung: 1 | **Gesamt: 10/12**
+- **Decision**: approve
+
+## Review Outcome
+
+- **Outcome class**: acceptable-special-case
+- **Workflow outcome**: keep
+- **Test-governance outcome**: keep
+- **Reason**: This package is a bounded vocabulary and IA convergence slice over repo-real workspace-first seams. It changes operator-facing language and disclosure only, keeps provider detail bounded, and explicitly blocks route, RBAC, schema, and framework expansion.
+- **Workflow result**: Ready for implementation.
+
+## Spec Scope Fields *(mandatory)*
+
+- **Scope**: canonical-view
+- **Primary Routes**:
+  - existing admin-plane environment chooser at `/admin/choose-tenant`
+  - existing workspace-scoped managed-environment landing surface at `/admin/workspaces/{workspace}/managed-tenants`
+  - existing environment dashboard route at `/admin/workspaces/{workspace}/environments/{environment}`
+  - existing shared shell and navigation affordances rendered on environment-scoped admin pages through `OperateHubShell` and `CanonicalNavigationContext`
+  - existing workspace widgets and the concrete policy-detail and baseline-compare helper surfaces at `apps/platform/app/Filament/Resources/PolicyResource.php`, `apps/platform/app/Filament/Resources/PolicyResource/Pages/ViewPolicy.php`, `apps/platform/app/Filament/Resources/PolicyResource/RelationManagers/VersionsRelationManager.php`, and `apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php`
+- **Data Ownership**: No new persisted truth is introduced. Existing workspace, managed-environment, operation, backup, and compare records remain authoritative. This slice only changes derived localization catalogs, page titles, surface-local display labels, widget copy, and helper text on the enumerated surfaces.
+- **RBAC**:
+  - workspace membership remains the first isolation boundary
+  - managed-environment entitlement remains the second isolation boundary where the current surface requires it
+  - capability denials remain unchanged and keep current `403` behavior after entitlement is established
+  - this slice must not widen access, soften `404` boundaries, or change the current auth-plane separation
+
+For canonical-view specs, the spec MUST define:
+
+- **Default filter behavior when tenant-context is active**: When a managed environment is active, the shell and page copy must describe that state as the selected environment. The feature must not reset or reinterpret the current workspace or environment context.
+- **Explicit entitlement checks preventing cross-tenant leakage**: Copy changes must not expose inaccessible workspaces or managed environments. Non-members and out-of-scope actors keep inherited `404` behavior; the new wording does not create new discoverability hints.
+
+## Cross-Cutting / Shared Pattern Reuse *(mandatory when the feature touches notifications, status messaging, action links, header actions, dashboard signals/cards, alerts, navigation entry points, evidence/report viewers, or any other existing shared operator interaction family; otherwise write `N/A - no shared interaction family touched`)*
+
+- **Cross-cutting feature?**: yes
+- **Interaction class(es)**: navigation entry points, page titles, shell scope labels, context chips, action labels, empty-state copy, and provider-neutral helper text
+- **Systems touched**: `apps/platform/lang/en/localization.php`, `apps/platform/lang/de/localization.php`, `apps/platform/lang/en/baseline-compare.php`, `apps/platform/lang/de/baseline-compare.php`, `ChooseTenant`, `ManagedTenantsLanding`, `TenantDashboard`, `OperateHubShell`, `CanonicalNavigationContext`, dashboard/workspace widget views, `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing`
+- **Existing pattern(s) to extend**: current locale resolution and translation catalogs, current workspace-context shell, current Filament page-title pattern, current dashboard heading pattern, and the existing provider-detail disclosure pattern where provider-owned terms are already shown as secondary context
+- **Shared contract / presenter / builder / renderer to reuse**: `localization.shell.*`, `localization.dashboard.*`, `WorkspaceContext`, `OperateHubShell`, `CanonicalNavigationContext`, existing widget view-models, and the current Filament page/view translation usage
+- **Why the existing shared path is sufficient or insufficient**: the infrastructure already exists. The gap is that those shared paths still carry the wrong nouns. `286` should converge them, not introduce a second glossary or page-local override system.
+- **Allowed deviation and why**: none. Hardcoded page-local neutralization or alias-only fallback keys would extend the drift instead of resolving it.
+- **Consistency impact**: environment chooser labels, managed-environment landing labels, dashboard headings, shell scope labels, registry return links, workspace widget context labels, and selected provider-neutral helper text must all use the same primary nouns in both supported locales.
+- **Review focus**: reviewers must block any new tenant-first copy on in-scope operator surfaces, any new default-visible Microsoft-owned noun where the platform noun is sufficient, and any auth-provider label being neutralized even though the provider is genuinely the subject.
+
+## OperationRun UX Impact *(mandatory when the feature creates, queues, deduplicates, resumes, blocks, completes, or deep-links to an `OperationRun`; otherwise write `N/A - no OperationRun start or link semantics touched`)*
+
+N/A - this slice may rename environment context labels inside existing widgets or operation summaries, but it does not change `OperationRun` start, completion, deep-link, or notification semantics.
+
+## Provider Boundary / Platform Core Check *(mandatory when the feature changes shared provider/platform seams, identity scope, governed-subject taxonomy, compare strategy selection, provider connection descriptors, or operator vocabulary that may leak provider-specific semantics into platform-core truth; otherwise write `N/A - no shared provider/platform boundary touched`)*
+
+- **Shared provider/platform boundary touched?**: yes
+- **Boundary classification**: mixed
+- **Seams affected**: platform-core operator nouns for managed environments and workspace-scoped shell context; default helper text for provider actions on restore/capture or baseline-compare entry surfaces; nested provider detail wording on those same surfaces
+- **Neutral platform terms preserved or introduced**: `workspace`, `environment`, `managed environment` for registry disambiguation only, `provider`, `environment scope`, `selected environment`, `all environments`
+- **Provider-specific semantics retained and why**: `Sign in with Microsoft`, `Microsoft not configured`, explicit provider names in secondary detail, and provider-owned diagnostic copy such as Graph-specific explanations remain intact because the provider itself is the subject in those contexts.
+- **Why this does not deepen provider coupling accidentally**: the slice moves default-visible copy away from Microsoft-specific nouns and keeps provider labels only where the provider genuinely owns the action or the evidence.
+- **Follow-up path**: broader no-legacy enforcement belongs to Spec `287`; broader provider-specific surface cleanup or auth-provider wording changes belong to later provider-owned work.
+
+## UI / Surface Guardrail Impact *(mandatory when operator-facing surfaces are changed; otherwise write `N/A`)*
+
+| Surface / Change | Operator-facing surface change? | Native vs Custom | Shared-Family Relevance | State Layers Touched | Exception Needed? | Low-Impact / `N/A` Note |
+|---|---|---|---|---|---|---|
+| Environment chooser page | yes | Native Filament page + existing Blade view | chooser labels, empty state, primary action text | page, view, localization key | no | current slug and class name remain unchanged |
+| Managed environments landing page | yes | Native Filament page + existing Blade view | landing title, empty state, selection CTA, supporting text | page, view, localization key | no | registry purpose stays the same; nouns change only |
+| Environment dashboard heading and context chips | yes | Mixed native Filament page + existing widget views | dashboard title, context chip labels, current scope disclosure | page, widget view, localization key | no | no new widget family or card pattern |
+| Shared operate-hub shell and navigation return affordances | yes | Native Filament header action + shared navigation helper | scope label, return label, registry back-link wording | shell, header action, navigation helper | no | no change to route targets or action hierarchy |
+| Policy detail capture/restore helper text and baseline-compare RBAC summary heading | yes | Native Filament actions + existing Blade section | default action/helper text, secondary provider detail, summary heading | modal copy, helper text, section heading, localization key | no | provider-owned detail remains nested and explicit |
+
+## Decision-First Surface Role *(mandatory when operator-facing surfaces are changed)*
+
+| Surface | Decision Role | Human-in-the-loop Moment | Immediately Visible for First Decision | On-Demand Detail / Evidence | Why This Is Primary or Why Not | Workflow Alignment | Attention-load Reduction |
+|---|---|---|---|---|---|---|---|
+| Environment chooser page | Primary Decision Surface | Decide which environment to enter after workspace selection | `Choose environment`, active-availability wording, one selection CTA | deeper lifecycle or operability detail remains secondary | Primary because this is the first place the operator commits to an environment context | follows workspace-first entry workflow | removes mental translation from route/context into UI |
+| Managed environments landing page | Primary Decision Surface | Decide which managed environment to inspect or administer | registry title, current workspace context, environment labels | deeper lifecycle or inactive detail remains lower priority | Primary because it is the registry surface for this context | matches post-workspace browsing flow | removes duplicate tenant terminology from the environment registry |
+| Environment dashboard heading and context chips | Secondary Context Surface | Confirm the currently selected environment before acting | environment title, current posture pill, selected environment chip | deeper diagnostic detail remains on the page body | Secondary because the decision to enter the environment has already happened | supports orientation inside environment pages | avoids relearning tenant-first nouns after selection |
+| Shared operate-hub shell and navigation return affordances | Secondary Context Surface | Confirm scope and navigate back to the correct registry | environment scope label, return affordance | raw route or nav payload remains hidden | Secondary because it orients an existing workflow rather than starting one | keeps context coherent across shared admin pages | removes noisy tenant-vs-environment translation work |
+| Policy detail capture/restore helper text and baseline-compare RBAC summary heading | Tertiary Evidence / Diagnostics | Confirm what action targets the environment versus the provider | neutral primary action label and brief helper copy, plus one provider-neutral summary heading | provider-specific detail is disclosed secondarily | Tertiary because it supports a flow that already has a primary page context | follows current admin action flow | prevents provider name from competing with the actual operator decision |
+
+## Audience-Aware Disclosure *(mandatory when operator-facing surfaces are changed)*
+
+| Surface | Audience Modes In Scope | Decision-First Default-Visible Content | Operator Diagnostics | Support / Raw Evidence | One Dominant Next Action | Hidden / Gated By Default | Duplicate-Truth Prevention |
+|---|---|---|---|---|---|---|---|
+| Environment chooser page | operator-MSP, support-platform | choose environment title, selected-workspace context, one selection action | lifecycle or operability explanations | raw environment IDs or debug payloads | `Choose environment` | IDs and debug semantics remain hidden | default path states the scope once and does not restate it in multiple cards |
+| Managed environments landing page | operator-MSP, support-platform | managed environments title, available environment rows, current workspace context | archived or unavailable reasons | raw metadata | `Open environment` | raw metadata remains secondary | registry title and row labels use one noun family |
+| Environment dashboard heading and context chips | operator-MSP, support-platform | environment title, posture pill, selected environment chip | page-body diagnostics and operation details | raw payloads | `Open` actions stay on the page body, not in the heading | low-level diagnostics stay outside the heading | heading owns only orientation, not duplicate status narratives |
+| Shared operate-hub shell and navigation return affordances | operator-MSP, support-platform | environment scope and one return label | route context or nav payloads | raw nav payloads | `Back to environment registry` or `Back to <environment>` | raw nav payloads remain hidden | shell labels do not reintroduce `tenant` beside environment copy |
+| Policy detail capture/restore helper text and baseline-compare RBAC summary heading | operator-MSP, support-platform | neutral action label, concise target explanation, and provider-neutral section heading | provider-specific constraints, provider API notes | raw provider payloads | action label remains dominant | provider-owned details stay helper or secondary text | default action does not repeat provider detail as the headline |
+
+## UI/UX Surface Classification *(mandatory when operator-facing surfaces are changed)*
+
+| Surface | Action Surface Class | Surface Type | Likely Next Operator Action | Primary Inspect/Open Model | Row Click | Secondary Actions Placement | Destructive Actions Placement | Canonical Collection Route | Canonical Detail Route | Scope Signals | Canonical Noun | Critical Truth Visible by Default | Exception Type / Justification |
+|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
+| Environment chooser page | Navigation / Drilldown / Context | Global-context Shell | choose an environment | explicit chooser action per row or card | forbidden | none beyond secondary helper copy | none | `/admin/choose-tenant` | `/admin/workspaces/{workspace}/environments/{environment}` | workspace context, availability | Environment | selected scope and availability | slug remains tenant-named, operator copy does not |
+| Managed environments landing page | Navigation / Drilldown / Registry | Read-only registry chooser | open an environment | explicit open action on row/card | allowed if already the current pattern | secondary lifecycle detail stays below title | none | `/admin/workspaces/{workspace}/managed-tenants` | `/admin/workspaces/{workspace}/environments/{environment}` | workspace, environment lifecycle | Managed environment | registry purpose and available environments | registry route remains tenant-named, copy does not |
+| Environment dashboard heading and context chips | Record / Detail / Overview | Overview-first page | confirm current environment context | page heading plus chips | n/a | page-body actions remain below heading | none | `/admin/workspaces/{workspace}/environments/{environment}` | same page | workspace, environment, posture | Environment dashboard | selected environment and posture | none |
+| Shared operate-hub shell and navigation return affordances | Navigation / Drilldown / Context | Global-context Shell | return to the right registry or environment | explicit header action labels | n/a | secondary nav stays contextual | none | inherited current page route | inherited current page route | environment scope, return target | Environment scope | current scope and return target | none |
+| Policy detail capture/restore helper text and baseline-compare RBAC summary heading | Record / Detail / Action | Action-supporting detail | confirm target before executing or scanning the compare summary | current action or section heading | n/a | provider detail stays helper text or secondary section | existing destructive-like actions remain unchanged | inherited current page route | inherited current page route | target environment, provider detail | Environment | default target and effect | none |
+
+## Operator Surface Contract *(mandatory when operator-facing surfaces are changed)*
+
+| Surface | Primary Persona | Decision / Operator Action Supported | Surface Type | Primary Operator Question | Default-visible Information | Diagnostics-only Information | Status Dimensions Used | Mutation Scope | Primary Actions | Dangerous Actions |
+|---|---|---|---|---|---|---|---|---|---|---|
+| Environment chooser page | Workspace operator | choose which environment to enter | chooser page | Which environment should I operate in now? | workspace context, available environments, one clear chooser label | deeper lifecycle or operability detail | availability, lifecycle | none | choose environment | none |
+| Managed environments landing page | Workspace operator | open the correct managed environment | registry page | Which managed environment belongs to this workspace and is available? | workspace title, environment registry, availability cues | archived or unavailable explanations | lifecycle, availability | none | open environment | none |
+| Environment dashboard heading and context chips | Environment operator | confirm the selected environment before using page actions | overview heading | Am I in the right environment? | environment name, posture pill, context chips | lower page diagnostics | posture, scope | none | inherited page actions only | none |
+| Shared operate-hub shell and navigation return affordances | Environment operator | recover orientation and navigate back safely | shared shell helper | What scope am I in and where do I go back? | environment scope label and return label | raw route or nav details | scope, context | none | return affordance only | none |
+| Policy detail capture/restore helper text and baseline-compare RBAC summary heading | Environment operator | confirm target and wording before execution or interpretation | action helper text / section heading | Does this action or summary target the environment or the provider detail? | neutral action label, concise target explanation, and provider-neutral summary heading | provider-specific detail and diagnostic notes | target, provider context | inherited existing action scope | inherited existing action | inherited existing dangerous actions |
+
+## Proportionality Review *(mandatory when structural complexity is introduced)*
+
+- **New source of truth?**: no
+- **New persisted entity/table/artifact?**: no
+- **New abstraction?**: no
+- **New enum/state/reason family?**: no
+- **New cross-domain UI framework/taxonomy?**: no
+- **Current operator problem**: the product already routes and scopes around environments, but the default-visible copy still teaches tenant-first and Microsoft-first operator truth.
+- **Existing structure is insufficient because**: existing localization catalogs and shared helpers are exactly where the wrong nouns currently live.
+- **Narrowest correct implementation**: rename the in-scope operator glossary and only the local display labels/test IDs on the enumerated surfaces, keep provider-specific nouns nested where they already belong, and leave shared payload contracts, routes, models, and RBAC unchanged.
+- **Ownership cost**: updating translation keys, touching a small number of shared surfaces, and keeping guard coverage for the environment-first glossary.
+- **Alternative intentionally rejected**: one-off value-only copy changes without key or view-model cleanup were rejected because they preserve the same semantic drift in shared helpers and test contracts.
+- **Release truth**: current-release cutover follow-through, not future-release preparation.
+
+### Compatibility posture
+
+This feature assumes a pre-production environment.
+
+Backward compatibility, translation-key aliases, route aliases, slug migration, and compatibility-specific tests are out of scope unless a later guardrail spec explicitly requires them.
+
+Canonical replacement of the in-scope operator glossary is preferred over preserving tenant-first key families for convenience.
+
+## Testing / Lane / Runtime Impact *(mandatory for runtime behavior changes)*
+
+- **Test purpose / classification**: Feature, Browser
+- **Validation lane(s)**: confidence, browser
+- **Why this classification and these lanes are sufficient**: the slice changes rendered operator-facing copy, page titles, shared shell labels, and helper text on existing admin surfaces. Focused feature coverage plus one bounded browser smoke are the narrowest honest proof. No new heavy-governance family is justified.
+- **New or expanded test families**: one localization feature family for environment terminology, one Filament surface-copy feature family for shared admin surfaces, one guard family for forbidden default-visible strings on in-scope files, and one browser smoke for the chooser-to-environment flow
+- **Fixture / helper cost impact**: low to moderate because proof needs workspace context, at least one managed environment, and the existing admin surfaces only
+- **Heavy-family visibility / justification**: one browser smoke only; no new heavy-governance coverage
+- **Special surface test profile**: standard-native-filament, global-context-shell
+- **Standard-native relief or required special coverage**: ordinary Filament feature coverage is sufficient for page titles and translation output; the shared shell and chooser flow need one explicit global-context-shell smoke
+- **Reviewer handoff**: reviewers must verify that no in-scope operator surface still uses `tenant` or default-visible `Microsoft` nouns where a platform noun is sufficient, that auth-provider labels remain provider-owned where appropriate, that route targets remain unchanged, that Filament stays v5 on Livewire v4, and that provider registration remains in `apps/platform/bootstrap/providers.php`
+- **Budget / baseline / trend impact**: contained feature-local increase only
+- **Escalation needed**: `follow-up-spec` if implementation uncovers route-slug renames, RBAC capability renames, or broader provider-surface cleanup beyond the bounded glossary slice
+- **Active feature PR close-out entry**: Smoke Coverage
+- **Planned validation commands**:
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Feature/Localization/EnvironmentContextTerminologyTest.php tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php`
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php`
+  - `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail bin pint --dirty --format agent`
+
+## Scope Boundaries
+
+### In Scope
+
+- environment-first terminology on the confirmed shared shell labels, chooser and landing titles, dashboard titles, context chips, registry return labels, workspace widgets, and selected helper copy
+- English and German localization catalog updates for the in-scope operator glossary
+- canonically replacing the in-scope translation-key family and only local display labels/test IDs owned by the enumerated surfaces; shared cross-surface payload contracts outside those surfaces remain unchanged
+- provider-neutral default action/helper text on the exact PolicyResource sync/capture surfaces, the policy versions restore action, and the baseline-compare landing RBAC summary heading where the provider is supporting context rather than the primary noun
+- focused guard and browser coverage that pins the environment-first glossary on the in-scope admin surfaces
+
+### Non-Goals
+
+- route, slug, or PHP class renaming
+- RBAC or capability vocabulary changes
+- provider-identity or provider-capability rewrites
+- artifact-source or report-surface taxonomy work
+- website localization or customer-review localization beyond Spec `275`
+- auth-provider wording such as `Sign in with Microsoft`
+- new localization infrastructure, translation storage, or asset changes
+
+## Candidate Selection Rationale
+
+- **Selected candidate**: `286 - UI Copy, IA & Localization Neutralization`
+- **Source locations**:
+  - `docs/product/roadmap.md` under the workspace-first managed-environment core cutover pack
+  - explicit user-directed manual promotion for reserved slot `286`
+- **Why selected**: the user explicitly requested the next reserved slot `286`, the slot is present in the roadmap, and repo truth confirms the smallest remaining gap is no longer route or policy plumbing but the operator-facing language that still teaches the retired tenant-first model.
+- **Why close alternatives were deferred**:
+  - Spec `287` remains the guardrail and no-legacy enforcement pack and should not be absorbed into this bounded copy slice
+  - broader customer-facing localization remains owned by Spec `275`
+  - route or slug renames remain outside this bounded neutralization slice
+  - broader provider-surface cleanup remains separate from the shared operator glossary cutover
+- **Smallest viable implementation slice**: replace in-scope tenant-first and default-visible Microsoft-first copy on the confirmed workspace-first admin surfaces, canonically replace the in-scope translation-key family, update only local display labels/test IDs owned by those surfaces, and keep shared payload contracts, routes, models, RBAC, and provider-owned detail unchanged.
+- **Documented deviations from raw candidate wording**:
+  - current repo truth already exposes environment-shaped route and dashboard seams, so `286` is not a greenfield IA redesign
+  - auth-provider labels remain explicitly provider-owned and are intentionally not neutralized in this slice
+  - internal class and route symbols may remain tenant-named while operator-facing copy becomes environment-first
+
+## Completed-Spec Guardrail Result
+
+- `specs/279-workspace-managed-environment-core/` contains implementation-close-out history and remains historical prerequisite context only.
+- `specs/280-workspace-tenancy-environment-routing/` is `Status: Ready` and remains adjacent prepared context only.
+- `specs/281-provider-connection-scope/` is `Status: Ready` and remains adjacent prepared context only.
+- `specs/282-governance-artifact-retargeting/` is `Status: Prepared - blocked by Spec 280 runtime prerequisite` and remains adjacent prepared context only.
+- `specs/283-provider-capability-registry/` is `Status: Ready` and remains adjacent prepared context only.
+- `specs/285-workspace-rbac-environment-access/` currently has a spec-level status of `Blocked by external prerequisites` while its tasks artifact already carries a review outcome of `implemented-and-validated`; `286` treats that split as adjacent context only and remains independent as long as it does not absorb any RBAC renaming.
+- `specs/275-customer-facing-localization-adoption/` remains related localization context only for glossary discipline and does not get refreshed here.
+- The target package `specs/286-ui-copy-ia-localization-neutralization/` did not exist before this prep run and is the sole new package created here.
+
+## Dependencies
+
+- current implementation branches should already contain the workspace-first route and environment dashboard seams prepared by Spec `280`
+- current provider-boundary seams from Spec `281` and provider-capability seams from Spec `283` must remain intact so `286` can keep provider-owned detail secondary instead of redefining it
+- any runtime branch used for later implementation must keep RBAC terminology bounded to Spec `285`; `286` does not require `285` close-out to be rewritten or fully normalized, but it must not absorb role or capability renaming
+
+## Assumptions
+
+- `Environment` is the primary operator noun for chooser, shell, dashboard, and default action copy.
+- `Managed environment` may remain on registry or disambiguation surfaces where it clarifies the object against a workspace.
+- Provider names remain visible only when the provider itself is the subject, such as auth-provider actions or explicit secondary detail.
+- Internal PHP classes, route names, slugs, and database columns may remain tenant-shaped in this slice.
+- English and German remain the only supported locales in scope.
+
+## Risks
+
+- Partial glossary cleanup can leave environment-first and tenant-first nouns side by side if the shared shell or widget files are not all updated together.
+- Neutralizing provider helper text too aggressively can hide when Microsoft is genuinely the acting system on an action surface.
+- Renaming translation keys without updating all in-scope call sites can break copy rendering or produce raw keys.
+- Scope pressure can try to turn the slice into route renaming, RBAC renaming, or broader provider-surface cleanup.
+
+## Follow-Up Candidates Explicitly Kept Out of Scope
+
+- `287 - Cutover Quality Gates & No-Legacy Enforcement`
+- broader provider-owned surface cleanup beyond the in-scope helper text and headings
+- route-slug or PHP class renaming for tenant-shaped symbols
+- website localization and customer-review localization beyond the current `275` package
+- broader RBAC capability or role copy convergence beyond the bounded environment-first glossary
+
+## User Scenarios & Testing *(mandatory)*
+
+### User Story 1 - Choose an environment with environment-first language (Priority: P1)
+
+As a workspace operator, I want the chooser and registry surfaces to tell me I am selecting an environment so the UI matches the workspace-first route and object model I am already using.
+
+**Why this priority**: This is the first operator-facing moment where the cutover is visible, and it is where the current terminology drift is most confusing.
+
+**Independent Test**: Open the chooser and managed-environment landing pages for a workspace, then verify the titles, empty states, selection actions, and supporting text use environment-first language in English and German while the underlying routes stay unchanged.
+
+**Acceptance Scenarios**:
+
+1. **Given** a workspace has selectable managed environments, **When** the operator opens the chooser or landing page, **Then** the page says `Choose environment` or `Managed environments` instead of `Choose tenant` or `Managed tenants`.
+2. **Given** a workspace has no active selectable managed environments, **When** the operator opens the chooser, **Then** the empty-state wording says no active environments are available and does not mention tenants.
+
+---
+
+### User Story 2 - Stay oriented inside an environment-scoped admin surface (Priority: P1)
+
+As an environment operator, I want the dashboard heading, context chips, and shared shell labels to confirm that I am inside an environment scope so I do not have to reinterpret tenant-first labels on every page.
+
+**Why this priority**: The cutover fails if the operator gets environment-shaped routes but tenant-shaped shell and heading copy.
+
+**Independent Test**: Open an environment dashboard and a shared operate-hub page, then verify the heading, context chip, scope label, and registry return affordance all use the same environment-first glossary.
+
+**Acceptance Scenarios**:
+
+1. **Given** an entitled managed environment is active, **When** the operator opens the dashboard, **Then** the title and context chip speak about the selected environment, not the selected tenant.
+2. **Given** an operate-hub page is rendered inside an active environment context, **When** the operator reads the shell labels, **Then** the shell says `Environment scope` or `All environments` and the return link points back to the environment registry without tenant-first wording.
+
+---
+
+### User Story 3 - Read provider actions with neutral default copy and explicit provider detail (Priority: P2)
+
+As an environment operator, I want restore/capture or baseline-compare helper text to use a neutral default noun so the product explains the target environment clearly while still preserving provider detail where it genuinely matters.
+
+**Why this priority**: Default-visible helper copy currently lets Microsoft-specific nouns dominate actions that are otherwise framed as environment-scoped admin workflows.
+
+**Independent Test**: Open `PolicyResource` sync/capture surfaces, the policy versions restore action, and the baseline-compare landing RBAC summary section, then verify the default-visible action/helper text or section heading uses provider-neutral wording while provider-specific detail remains secondary and explicit.
+
+**Acceptance Scenarios**:
+
+1. **Given** the `VersionsRelationManager` restore action or `ViewPolicy` capture snapshot modal is shown on an environment-scoped policy surface, **When** the operator reads the action and helper text, **Then** the default headline speaks about the environment or provider action neutrally rather than `Restore to Microsoft Intune`.
+2. **Given** `baseline-compare-landing` shows the RBAC summary section or a provider-specific note is required on the policy surfaces, **When** the operator opens the same surface, **Then** the heading or helper text remains provider-neutral by default and the provider name stays available only as secondary detail.
+
+### Edge Cases
+
+- A workspace has no active selectable managed environments and the shell must still avoid tenant-first nouns.
+- The underlying route or class remains `choose-tenant` or `TenantDashboard`, but operator-facing copy must still be environment-first.
+- A provider-owned auth action such as `Sign in with Microsoft` must remain provider-specific and must not be neutralized accidentally.
+- A helper string needs both a neutral primary noun and a provider-specific secondary explanation without sounding contradictory.
+- A widget or view still passes `tenant_label` in a view-model contract even though the operator-facing label must become `environment_label`.
+
+## Requirements
+
+**Constitution alignment (required):** `286` changes operator-facing vocabulary and shared surface disclosure only. It introduces no Graph calls, no write/change workflow, no queue/background work, and no new persisted truth.
+
+**Constitution alignment (PROP-001 / ABSTR-001 / PROV-001):** This package reuses existing localization and shell infrastructure, keeps provider-specific semantics out of platform-core default-visible copy, and forbids a broader IA or translation framework.
+
+**Constitution alignment (XCUT-001 / UI-FIL-001 / DECIDE-001):** The slice reuses native Filament pages and current widget shells, keeps one dominant chooser or navigation action per surface, and does not invent a second glossary or a custom design system.
+
+### Functional Requirements
+
+- **FR-001**: In-scope chooser and registry surfaces MUST use `environment` or `managed environment` as the primary operator noun instead of `tenant`.
+- **FR-002**: Shared shell labels MUST use `Environment scope`, `All environments`, and equivalent environment-first terms where the active managed-environment context is the primary truth.
+- **FR-003**: Environment dashboard headings and context chips MUST describe the active scope as an environment.
+- **FR-004**: Registry return links and related navigation affordances MUST point to the same routes they do today while using environment-first wording.
+- **FR-005**: English and German localization catalogs MUST expose the same in-scope environment-first glossary.
+- **FR-006**: The in-scope localization-key family and only the local display labels/test IDs owned by the enumerated surfaces that still encode tenant-first operator nouns MUST be renamed or replaced canonically, not aliased.
+- **FR-007**: Provider-neutral action/helper copy MUST become the default-visible wording on the exact `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` surfaces named in this spec.
+- **FR-008**: Provider-specific names MUST remain available only where the provider is genuinely the subject of the auth flow or the secondary explanatory detail.
+- **FR-009**: Route targets, slugs, PHP class names, database columns, model names, and capability names MUST remain unchanged in this slice.
+- **FR-010**: This slice MUST NOT change RBAC outcomes, route access, or `404` versus `403` semantics.
+- **FR-011**: The implementation MUST NOT introduce a new localization framework, storage, asset pipeline change, or panel configuration change.
+- **FR-012**: The implementation MUST include focused feature/guard coverage for the in-scope environment-first glossary and one browser smoke for the chooser-to-environment flow.
+
+### UX / IA Requirements
+
+- **UX-001**: `Environment` is the default operator noun on chooser, shell, dashboard, and default action copy.
+- **UX-002**: `Managed environment` is reserved for registry/disambiguation surfaces where the object needs to be distinguished from the workspace.
+- **UX-003**: The chooser and landing surfaces keep one dominant selection action and must not duplicate the same scope summary across multiple visible regions.
+- **UX-004**: Dashboard headings and shell labels stay orientation-first and must not compete with page-body actions.
+- **UX-005**: Provider-specific terms stay secondary where a platform noun is sufficient for the first operator decision.
+
+### Localization Requirements
+
+- **L10N-001**: English and German keys for the in-scope shell and dashboard glossary remain parity-matched.
+- **L10N-002**: Raw translation keys must not leak on in-scope surfaces after the key-family neutralization.
+- **L10N-003**: Auth-provider copy such as `Sign in with Microsoft` remains out of scope and unchanged.
+
+### Non-Functional Requirements
+
+- **NFR-001**: The slice remains implementation-bounded to current admin surfaces and avoids broader website or customer-review localization.
+- **NFR-002**: Guard coverage must stay limited to the in-scope files and must not become a repo-wide blanket string ban.
+- **NFR-003**: No deploy or asset changes are required beyond the existing platform flow.
+
+## Acceptance Criteria
+
+- The chooser and managed-environment landing pages no longer show tenant-first nouns in their primary titles, CTAs, or empty-state copy.
+- Environment dashboard headings, context chips, and shared shell labels use environment-first wording consistently.
+- In-scope provider helper text uses neutral default copy while retaining provider-specific secondary detail where needed.
+- English and German translations are aligned for the in-scope glossary and no raw translation keys appear.
+- Routes, slugs, classes, RBAC behavior, and provider registration remain unchanged.
+
+## Success Criteria
+
+- Operators can move from workspace selection into an environment-scoped page without encountering tenant-first copy on the in-scope surfaces.
+- The platform no longer teaches `tenant` or default-visible `Microsoft` nouns as the first explanation of an environment-scoped admin workflow.
+- The bounded test and browser proof succeeds without widening into adjacent specs.
+
+## Open Questions
+
+- None. This package resolves the primary noun choice as `Environment`, keeps `Managed environment` for registry disambiguation only, and keeps auth-provider labels explicitly out of scope.
\ No newline at end of file
diff --git a/specs/286-ui-copy-ia-localization-neutralization/tasks.md b/specs/286-ui-copy-ia-localization-neutralization/tasks.md
new file mode 100644
index 00000000..91cbef36
--- /dev/null
+++ b/specs/286-ui-copy-ia-localization-neutralization/tasks.md
@@ -0,0 +1,212 @@
+---
+description: "Task list for UI Copy, IA & Localization Neutralization"
+---
+
+# Tasks: UI Copy, IA & Localization Neutralization
+
+**Input**: Design documents from `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/`  
+**Prerequisites**: `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/plan.md` (required), `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/spec.md` (required), `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md` (required), `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/research.md`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/data-model.md`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/quickstart.md`
+
+**Review Artifact**: `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md` is the outcome-of-record for the review outcome class, workflow outcome, and test-governance outcome. If implementation widens into route/slug/class renaming, auth-provider wording changes, RBAC vocabulary changes, or broader provider-surface cleanup, update that artifact before continuing.
+
+**Tests**: Required (Pest) for runtime behavior changes. Keep proof in the existing `confidence` lane plus one bounded `browser` smoke only because this slice changes rendered operator-facing copy, shared shell labels, chooser semantics, and helper-text disclosure on existing admin surfaces.  
+**Operations**: No new `OperationRun`, queue, remote call, or background workflow is introduced.  
+**RBAC**: Workspace and managed-environment entitlement behavior remains unchanged. Reuse existing policy and capability seams; do not add raw capability strings or role-name checks.  
+**Shared Pattern Reuse**: Reuse `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/baseline-compare.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/baseline-compare.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/ChooseTenant.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/TenantDashboard.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/OperateHub/OperateHubShell.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource/Pages/ViewPolicy.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource/RelationManagers/VersionsRelationManager.php`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php`. Do not add a new localization framework, alias-only translation layer, route/slug rename, or provider-cleanup sweep.  
+**Filament / Panel Guardrails**: Filament remains v5 on Livewire v4. Provider registration remains unchanged in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/bootstrap/providers.php`. No new globally-searchable resource, no new panel, and no asset-strategy change are allowed in this slice.  
+**Organization**: Tasks are grouped by user story so chooser/registry copy, dashboard/shell copy, and provider-neutral helper copy remain independently testable after the shared glossary is settled.  
+**Review Outcome**: `acceptable-special-case`  
+**Workflow Outcome**: `keep`  
+**Test-governance Outcome**: `keep`
+
+## Test Governance Checklist
+
+- [x] Lane assignment is named and is the narrowest sufficient proof for the changed behavior.
+- [x] New or changed tests stay in the smallest honest family, and any browser addition remains explicit and bounded.
+- [x] Shared helpers, widgets, translation catalogs, and environment context defaults stay cheap by default.
+- [x] Planned validation commands cover the change without pulling in unrelated lane cost.
+- [x] Surface test profile stays explicit: `standard-native-filament` for page-title and localization output, `global-context-shell` for shell labels and chooser flow.
+- [x] Dominant CTA, diagnostics-second ordering, secondary provider detail, and no duplicate visible scope summary are verified explicitly on the chooser, landing, dashboard, shell, and pinned US3 helper surfaces.
+- [x] Any material budget, baseline, trend, or escalation note is recorded in the active feature package or PR close-out.
+
+## Phase 1: Setup (Shared Context)
+
+**Purpose**: Lock the bounded glossary slice, explicit non-goals, and proving lanes before runtime edits begin.
+
+- [x] T001 Review the bounded slice, explicit non-goals, completed-spec guardrails, and repo-fit outcome in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/spec.md`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/plan.md`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/checklists/requirements.md`
+- [x] T002 [P] Review the glossary decisions, key-family replacement rules, and provider-detail boundary in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/research.md`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/data-model.md`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/contracts/ui-copy-ia-localization-neutralization.logical.openapi.yaml`
+- [x] T003 [P] Confirm the focused Sail/Pest validation commands and bounded browser smoke in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/quickstart.md`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Localization/`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Filament/`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Guards/`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Browser/`
+
+---
+
+## Phase 2: Foundational (Blocking Prerequisites)
+
+**Purpose**: Settle the shared environment-first glossary and bounded provider-detail rule before user-story implementation starts.
+
+**Critical**: No user-story work should begin until this phase is complete.
+
+- [x] T004 [P] Inventory the in-scope tenant-first and default-visible provider-first strings across `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/baseline-compare.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/baseline-compare.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/ChooseTenant.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/TenantDashboard.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/OperateHub/OperateHubShell.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php`, and the in-scope widget views so later story work reuses one glossary only
+- [x] T005 [P] Add or extend bounded guard coverage in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php` for in-scope default-visible strings such as `tenant scope`, `select tenant`, `all tenants`, `managed tenants`, and `restore to Microsoft Intune`, while explicitly excluding auth-provider copy like `Sign in with Microsoft`
+- [x] T006 Canonically replace the in-scope translation-key family and only the local display labels/test IDs owned by the enumerated surfaces with environment-first names in the smallest shared seams first, without adding alias keys or broad repo-wide grep bans
+
+**Checkpoint**: The glossary inventory, guard boundaries, and canonical replacement rules are fixed before surface-specific story work begins.
+
+---
+
+## Phase 3: User Story 1 - Choose an environment with environment-first language (Priority: P1)
+
+**Goal**: Let workspace operators choose and open environments from chooser/registry surfaces whose copy matches the current workspace-first route model.
+
+**Independent Test**: Open the chooser and managed-environment landing pages and verify the titles, empty states, CTAs, and supporting text use environment-first wording in English and German while the routes stay unchanged.
+
+### Tests for User Story 1
+
+- [x] T007 [P] [US1] Add or extend `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Localization/EnvironmentContextTerminologyTest.php` for chooser and landing titles, empty states, search placeholders, and selection actions in English and German
+
+### Implementation for User Story 1
+
+- [x] T008 [US1] Replace the in-scope chooser and landing glossary keys in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/localization.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/localization.php` so `tenant_*` admin-shell terms become `environment_*` equivalents
+- [x] T009 [US1] Apply the new glossary to `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/ChooseTenant.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/pages/choose-tenant.blade.php` so the chooser title, CTA, empty state, and search placeholder become environment-first without changing the route slug
+- [x] T010 [US1] Apply the same glossary to `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/Workspaces/ManagedTenantsLanding.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/pages/workspaces/managed-tenants-landing.blade.php` so the registry title and opening affordances say `Managed environments` instead of `Managed tenants`
+
+**Checkpoint**: User Story 1 is independently functional when chooser and registry surfaces no longer teach tenant-first admin nouns.
+
+---
+
+## Phase 4: User Story 2 - Stay oriented inside environment-scoped admin surfaces (Priority: P1)
+
+**Goal**: Let operators confirm the active environment through consistent dashboard, shell, and navigation labels once they enter an environment-scoped page.
+
+**Independent Test**: Open an environment dashboard and one shared operate-hub page, then verify the dashboard heading, context chips, shell scope label, and return affordance all use the same environment-first glossary.
+
+### Tests for User Story 2
+
+- [x] T011 [P] [US2] Add or extend `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php` for dashboard heading keys, shell scope labels, registry return links, and workspace widget environment labels
+
+### Implementation for User Story 2
+
+- [x] T012 [US2] Update `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Pages/TenantDashboard.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/widgets/dashboard/tenant-dashboard-context-chips.blade.php` so headings and chips speak about the selected environment
+- [x] T013 [US2] Update `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/OperateHub/OperateHubShell.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Support/Navigation/CanonicalNavigationContext.php` so shell scope labels and registry back links become environment-first while route targets stay unchanged
+- [x] T014 [US2] Update `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/widgets/workspace/workspace-needs-attention.blade.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/widgets/workspace/workspace-recent-operations.blade.php` so directly rendered environment labels become environment-first without widening shared workspace overview payload contracts
+
+**Checkpoint**: User Story 2 is independently functional when the shell and dashboard no longer make operators reinterpret environment routes as tenant routes.
+
+---
+
+## Phase 5: User Story 3 - Read provider actions with neutral default copy and explicit provider detail (Priority: P2)
+
+**Goal**: Let operators read a neutral environment-first default action/helper path on the bounded restore/capture/baseline-compare surfaces while still preserving provider-specific secondary detail.
+
+**Independent Test**: Open one in-scope restore/capture or baseline-compare entry surface and verify the default-visible headline/helper text is neutralized while provider-specific secondary detail remains explicit and auth-provider wording stays unchanged.
+
+### Tests for User Story 3
+
+- [x] T015 [P] [US3] Extend `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php` for the exact `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` helper surfaces, plus the explicit exclusion of auth-provider labels
+- [x] T016 [P] [US3] Add or extend `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php` for the chooser-to-environment path plus the pinned policy-detail/helper and baseline-compare summary surfaces
+
+### Implementation for User Story 3
+
+- [x] T017 [US3] Update the bounded provider-neutral helper strings in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/localization.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/en/baseline-compare.php`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/lang/de/baseline-compare.php` so `PolicyResource`, `ViewPolicy`, `VersionsRelationManager`, and `baseline-compare-landing` stop using provider-first nouns as their default-visible headings or helper text where a platform noun is sufficient
+- [x] T018 [US3] Reuse `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource/Pages/ViewPolicy.php`, `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/app/Filament/Resources/PolicyResource/RelationManagers/VersionsRelationManager.php`, and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/apps/platform/resources/views/filament/pages/baseline-compare-landing.blade.php` so provider detail stays secondary and no auth-provider wording is changed
+
+**Checkpoint**: User Story 3 is independently functional when provider-neutral helper text no longer dominates the first operator decision on the bounded action surfaces.
+
+---
+
+## Phase 6: Polish & Cross-Cutting Validation
+
+**Purpose**: Run the canonical proof commands, format touched files, and keep any discovered spillover explicit instead of absorbing it into this slice.
+
+- [x] T019 Run `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Feature/Localization/EnvironmentContextTerminologyTest.php tests/Feature/Filament/EnvironmentContextSurfaceCopyTest.php tests/Feature/Filament/Localization/PolicyInventoryLocalizationTest.php tests/Feature/Guards/EnvironmentCopyNeutralizationGuardTest.php` exactly as recorded in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/plan.md` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/quickstart.md`
+- [x] T020 Run `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Browser/Spec286EnvironmentCopyNeutralizationSmokeTest.php` exactly as recorded in `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/plan.md` and `/Users/ahmeddarrazi/Documents/projects/wt-plattform/specs/286-ui-copy-ia-localization-neutralization/quickstart.md`
+- [x] T021 Run `export PATH="/bin:/usr/bin:/usr/local/bin:$PATH" && cd apps/platform && ./vendor/bin/sail bin pint --dirty --format agent`
+- [x] T022 Review the touched localization files, page classes, shell helpers, widget views, pinned policy/baseline-compare helper surfaces, and the review artifact to confirm no route/slug/class/capability changed, chooser and landing still keep one dominant CTA, dashboard/shell remain orientation-first, provider detail stays secondary, no duplicate visible scope summary was introduced, no auth-provider wording was neutralized, and any broader provider-surface cleanup was recorded as follow-up instead of absorbed here
+
+---
+
+## Dependencies & Execution Order
+
+### Phase Dependencies
+
+- **Phase 1 (Setup)**: no dependencies; start immediately.
+- **Phase 2 (Foundational)**: depends on Phase 1 and blocks all user stories until glossary and guard boundaries are settled.
+- **Phase 3 (US1)**: depends on Phase 2 and delivers the first environment-first operator surface increment.
+- **Phase 4 (US2)**: depends on Phase 2 and should follow US1 because shell and dashboard copy should consume the final chooser vocabulary.
+- **Phase 5 (US3)**: depends on Phase 2 and is safest after US1 and US2 because provider-neutral helper copy should align with the final environment-first glossary.
+- **Phase 6 (Polish)**: depends on all implemented stories.
+
+### User Story Dependencies
+
+- **US1 (P1)**: first independently testable increment once the glossary and guard boundaries exist.
+- **US2 (P1)**: independently testable after Phase 2, but should merge after US1 because shell and dashboard labels must not diverge from chooser vocabulary.
+- **US3 (P2)**: independently testable after Phase 2, but should merge after US1 and US2 because helper text should inherit the final platform nouns.
+
+### Within Each User Story
+
+- Write the listed Pest coverage first and make it fail for the intended gap before runtime implementation.
+- Reuse the existing localization and shell seams before adding any new helper.
+- Re-run the narrowest relevant validation command after each story checkpoint before moving to the next story.
+
+---
+
+## Parallel Execution Examples
+
+### Phase 1
+
+- T002 and T003 can run in parallel after T001 confirms the bounded slice.
+
+### Phase 2
+
+- T004 and T005 can run in parallel while T006 finalizes the canonical replacement rule.
+
+### User Story 1
+
+- T007 can run alongside any last Phase 2 cleanup.
+- T008 can proceed before T009 and T010 finish wiring the glossary into page classes and views.
+
+### User Story 2
+
+- T011 can run alongside the first US1 validation.
+- T012 and T014 can proceed in parallel before T013 finalizes the shared shell labels.
+
+### User Story 3
+
+- T015 and T016 can run in parallel because they cover feature and browser proof separately.
+- T017 can proceed before T018 finalizes the bounded helper-text consumers.
+
+---
+
+## Implementation Strategy
+
+### Suggested MVP Scope
+
+- MVP = **Phase 2 + US1 + US2**. The product becomes semantically coherent once the chooser, registry, dashboard, and shell all teach the same environment-first admin vocabulary.
+
+### Incremental Delivery
+
+1. Complete Phase 1 and Phase 2.
+2. Deliver US1 and validate the chooser/registry surfaces.
+3. Deliver US2 and validate the dashboard/shell surfaces.
+4. Deliver US3 and validate the bounded provider-neutral helper text plus browser smoke.
+5. Finish with Phase 6 validation, formatting, and explicit spillover review.
+
+### Team Strategy
+
+1. Settle the glossary and guard boundaries before changing multiple shared surfaces.
+2. Parallelize test authoring inside each story before converging on the shared localization files.
+3. Serialize merges around `localization.php`, `TenantDashboard.php`, and `OperateHubShell.php` because they are the most likely merge hotspots for this slice.
+
+---
+
+## Explicit Follow-Ups / Out of Scope
+
+- broader route/slug/class renaming remains a separate follow-up
+- broader provider-owned surface cleanup remains a separate follow-up
+- auth-provider wording changes remain out of scope
+- website localization and customer-review localization remain out of scope for this package
+- no-legacy enforcement and broader guard-pack work remain in Spec `287`
+
+## Close-out Notes
+
+- 2026-05-10: Manual integrated-browser investigation found a live runtime issue on the `Capture snapshot` action where the Livewire request fires but the Filament action modal host remains empty. That behavior is treated as discovered out-of-scope runtime debt for Spec `286` and is intentionally not part of this package's copy / IA / localization acceptance scope.
+- Spec `286` closes on the bounded environment-first copy, IA, and localization neutralization surfaces plus the targeted Pest validations defined above.
\ No newline at end of file