feat: Migrate staff profile features from Data Connect to V2 REST API

- Removed data_connect package from mobile pubspec.yaml.
- Added documentation for V2 profile migration status and QA findings.
- Implemented new session management with ClientSessionStore and StaffSessionStore.
- Created V2SessionService for handling user sessions via the V2 API.
- Developed use cases for cancelling late worker assignments and submitting worker reviews.
- Added arguments and use cases for payment chart retrieval and profile completion checks.
- Implemented repository interfaces and their implementations for staff main and profile features.
- Ensured proper error handling and validation in use cases.

.claude/agent-memory/mobile-builder/project_v2_profile_migration.md

@@ -0,0 +1,33 @@
+---
+name: V2 Profile Migration Status
+description: Staff profile sub-packages migrated from Data Connect to V2 REST API - entity mappings and patterns
+type: project
+---
+
+## Phase 2 Profile Migration (completed 2026-03-16)
+
+All staff profile read features migrated from Firebase Data Connect to V2 REST API.
+
+**Why:** Data Connect is being deprecated in favor of V2 REST API for all mobile backend access.
+
+**How to apply:** When working on any profile feature, use `ApiService.get(V2ApiEndpoints.staffXxx)` not Data Connect connectors.
+
+### Entity Mappings (old -> V2)
+- `Staff` (old with name/avatar/totalShifts) -> `Staff` (V2 with fullName/metadata) + `StaffPersonalInfo` for profile form
+- `EmergencyContact` (old with name/phone/relationship enum) -> `EmergencyContact` (V2 with fullName/phone/relationshipType string)
+- `AttireItem` (removed) -> `AttireChecklist` (V2)
+- `StaffDocument` (removed) -> `ProfileDocument` (V2)
+- `StaffCertificate` (old with ComplianceType enum) -> `StaffCertificate` (V2 with certificateType string)
+- `TaxForm` (old with I9TaxForm/W4TaxForm subclasses) -> `TaxForm` (V2 with formType string + fields map)
+- `StaffBankAccount` (removed) -> `BankAccount` (V2)
+- `TimeCard` (removed) -> `TimeCardEntry` (V2 with minutesWorked/totalPayCents)
+- `PrivacySettings` (new V2 entity)
+
+### Profile Main Page
+- Old: 7+ individual completion use cases from data_connect connectors
+- New: Single `ProfileRepositoryImpl.getProfileSections()` call returning `ProfileSectionStatus`
+- Stats fields (totalShifts, onTimeRate, etc.) no longer on V2 Staff entity -- hardcoded to 0 pending dashboard API
+
+### DI Pattern
+- All repos inject `BaseApiService` from `CoreModule` (registered as `i.get<BaseApiService>()`)
+- Modules import `CoreModule()` instead of `DataConnectModule()`