migration start

tasks/native-business-logic-migration/15-implement-ios-state-management.md

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+# 15. Implement iOS state management (Combine/Observer)
+
+meta:
+  id: native-business-logic-migration-15
+  feature: native-business-logic-migration
+  priority: P0
+  depends_on: [native-business-logic-migration-12]
+  tags: [implementation, ios, state-management]
+
+objective:
+- Implement reactive state management using Combine
+
+deliverables:
+- FeedRepository.swift
+- SubscriptionRepository.swift
+- FeedViewModel.swift
+- SubscriptionViewModel.swift
+- State enumeration
+- Error handling types
+
+tests:
+- Unit: Test repository methods
+- Unit: Test ViewModel state transitions
+- Unit: Test Combine publishers
+- Integration: Test UI updates
+
+acceptance_criteria:
+- Repositories provide Combine publishers
+- ViewModels manage state properly
+- Error states handled
+- Loading states implemented
+- Memory efficient (no retain cycles)
+
+validation:
+- Run unit tests
+- Check with Instruments for memory leaks
+
+notes:
+- Use Combine framework
+- Follow Repository pattern
+- Use @Published for SwiftUI integration