## Summary
- introduce the Provider Connection Filament resource (list/create/edit) with DB-only controls, grouped action dropdowns, and badge-driven status/health rendering
- wire up the provider foundation stack (migrations, models, policies, providers, operations, badges, and audits) plus the required spec docs/checklists
- standardize Inventory Sync notifications so the job no longer writes its own DB rows; terminal notifications now flow exclusively through OperationRunCompleted while the start surface still shows the queued toast
## Testing
- ./vendor/bin/sail php ./vendor/bin/pint --dirty
- ./vendor/bin/sail artisan test tests/Unit/Badges/ProviderConnectionBadgesTest.php
- ./vendor/bin/sail artisan test tests/Feature/ProviderConnections tests/Feature/Filament/ProviderConnectionsDbOnlyTest.php
- ./vendor/bin/sail artisan test tests/Feature/Inventory/RunInventorySyncJobTest.php tests/Feature/Inventory/InventorySyncStartSurfaceTest.php
Co-authored-by: Ahmed Darrazi <ahmeddarrazi@MacBookPro.fritz.box>
Reviewed-on: #73
