## Summary
- unify provider-backed action starts behind the shared provider dispatch gate and shared start-result presenter
- align tenant, onboarding, provider-connection, restore, directory, and monitoring surfaces with the same blocked, deduped, scope-busy, and accepted semantics
- include the spec kit artifacts for spec 216 and the regression fixes that brought the full suite back to green
## Validation
- `cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Feature/RestoreRunIdempotencyTest.php tests/Feature/ExecuteRestoreRunJobTest.php tests/Feature/Restore/RestoreRunProviderStartTest.php tests/Feature/Hardening/ExecuteRestoreRunJobGateTest.php tests/Feature/Hardening/BlockedWriteAuditLogTest.php tests/Feature/Onboarding/OnboardingDraftLifecycleTest.php`
- `cd apps/platform && ./vendor/bin/sail artisan test --compact tests/Browser/Spec177InventoryCoverageTruthSmokeTest.php`
- `cd apps/platform && ./vendor/bin/sail artisan test --compact`
## Notes
- branch: `216-provider-dispatch-gate`
- commit: `34230be7`
Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #255
