chore: cleanup, updated docs

docs/PROJECT_OVERVIEW.md

@@ -59,7 +59,7 @@
 - `BookingFingerprintService` - Dirty state detection for edit mode
 - `TravelDataService` - API integration and caching
 - `ParticipantCardDataService` - Card display data
-- `InsuranceMatchingService` - Insurance eligibility and auto-reassignment
+- `InsuranceService` - Consolidated insurance operations (eligibility, type filtering, reassignment) with request-scoped caching
 - `RoomAssignmentService` - Automatic room assignment
 
 ## Critical Patterns
@@ -191,7 +191,7 @@ Critical for correct pricing and auto-reassignment:
 ### Bulk Insurance Booking
 - Applicant enables bulk → applies to all participants
 - `BulkInsuranceBookingCondition` hides dependent participant insurance fields
-- Uses `InsuranceMatchingService::batchAssignInsuranceToParticipants()` for price tier matching
+- Uses `InsuranceService::batchAssignInsuranceToParticipants()` for price tier matching
 
 ## Data Flow
 
@@ -241,7 +241,7 @@ Critical for correct pricing and auto-reassignment:
 - **Insurance IDs**: Always use strings, not integers (e.g., `'100'` not `100`)
 - **Room properties**: Use `$label` property, not `$name`
 - **Participant names**: Index 0 expects "Anmelder:in", others expect "Teilnehmer:in N" (1-based)
-- **Mock dependencies**: Ensure all constructor dependencies have mocks (especially new ones like `InsuranceLoader`, `InsuranceTypeFilterService`)
+- **Mock dependencies**: Ensure all constructor dependencies have mocks. Note: `InsuranceService` is stateless with no dependencies (no mocking required)
 - **Insurance mutability**: In edit mode, insurances are always readonly (API limitation)
 
 ## File Locations