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-# Kioku Development Roadmap
-
-Each feature is implemented end-to-end (backend to frontend) before moving to the next.
-Smaller features first to enable early MVP validation.
-
----
-
-## Phase 1: Foundation ✅
-
-### Project Setup
-- [x] Create docs/dev/architecture.md
-- [x] Create docs/dev/roadmap.md
-- [x] Initialize pnpm workspace
-- [x] Configure TypeScript
-- [x] Configure Biome
-
-### Server Foundation
-- [x] Initialize Hono app
-- [x] Setup Vitest
-- [x] Add simple test to test that Hono works
-- [x] Error handling middleware
-- [x] Logger middleware
-
-### Database
-- [x] Docker Compose with PostgreSQL
-- [x] Drizzle ORM setup
-- [x] Database migrations
-
-### Shared Package
-- [x] Create pkgs/shared
-- [x] Define types (User, Deck, Card, ReviewLog)
-- [x] Zod validation schemas
-
-### Authentication API
-- [x] User registration endpoint
-- [x] Login endpoint (JWT)
-- [x] Refresh token endpoint
-- [x] Auth middleware
-- [x] Add tests
-- [x] Define repository types and avoid direct use of DB
-
----
-
-## Phase 2: Auth UI
-
-**Goal**: Minimal UI for user login and registration
-
-### Frontend Foundation
-- [x] Initialize React + Vite
-- [x] Setup routing
-- [x] API client (fetch wrapper with auth headers)
-- [x] Auth store (token management)
-
-### Auth Pages
-- [x] Register page
-- [x] Login page
-- [x] Protected route handling (redirect to login)
-- [x] Add tests
-
-**✅ Milestone**: Users can log in from the browser
-
----
-
-## Phase 3: Deployment
-
-### Docker
-- [x] Dockerfile for server
-- [x] Dockerfile for web (static build)
-- [x] compose.yml (full stack)
-
-### Documentation
-- [x] README.md (setup, usage)
-
-**✅ Milestone**: Ready for production deployment
-
----
-
-## Phase 4: Deck Management
-
-**Goal**: Create, edit, and delete decks
-
-### Server API
-- [x] Deck CRUD endpoints (GET, POST, PUT, DELETE)
-- [x] Add tests
-
-### Frontend
-- [x] Deck list page (empty state, list view)
-- [x] Create deck modal/form
-- [x] Edit deck
-- [x] Delete deck (with confirmation)
-- [x] Add tests
-
-**✅ Milestone**: Users can create and manage decks
-
----
-
-## Phase 5: Card Management
-
-**Goal**: Create, edit, and delete cards
-
-### Server API
-- [x] Card CRUD endpoints (GET, POST, PUT, DELETE)
-- [x] Add tests
-
-### Frontend
-- [x] Card list view (in deck detail page)
-- [x] Create card form (front/back)
-- [x] Edit card
-- [x] Delete card
-- [x] Add tests
-
-**✅ Milestone**: Users can create and manage cards
-
----
-
-## Phase 6: Study Session (MVP Complete)
-
-**Goal**: Study with FSRS algorithm
-
-### Server API
-- [x] ts-fsrs integration
-- [x] GET /api/decks/:deckId/study - Get due cards
-- [x] POST /api/decks/:deckId/study/:cardId - Submit review
-- [x] Add tests
-
-### Frontend
-- [x] Study session page
-- [x] Card flip interaction
-- [x] Rating buttons (Again, Hard, Good, Easy)
-- [x] Progress display (remaining cards)
-- [x] Session complete screen
-- [x] Add tests
-
-**✅ Milestone**: MVP complete - basic study flow works
-
----
-
-## Phase 7: PWA & Offline Support
-
-**Goal**: Study offline
-
-### PWA Setup
-- [x] vite-plugin-pwa configuration
-- [x] Web manifest
-- [x] Service Worker
-- [x] Offline fallback page
-- [x] Add tests
-
-### IndexedDB (Local Storage)
-- [x] Dexie.js setup
-- [x] Local schema (with _synced flag)
-- [x] Local CRUD operations for Deck/Card/ReviewLog
-- [x] Add tests
-
-### Sync Engine
-- [x] POST /api/sync/push endpoint
-- [x] GET /api/sync/pull endpoint
-- [x] Client: Sync queue management
-- [x] Client: Push implementation
-- [x] Client: Pull implementation
-- [x] Conflict resolution (Last-Write-Wins)
-- [x] Auto-sync on reconnect
-- [x] Add tests
-
-### Sync UI
-- [x] Sync status indicator
-- [x] Manual sync button
-- [x] Offline mode indicator
-
-**✅ Milestone**: Study offline and sync when back online
-
----
-
-## Phase 8: Anki Import
-
-**Goal**: Import existing Anki decks (.apkg, .colpkg)
-
-### Parser
-- [x] ZIP extraction
-- [x] SQLite database reading
-- [x] Note/Card mapping to Kioku format
-- [x] Add tests
-
-### Server command
-- [x] Add `src/server/scripts/import-anki.ts`
-
-**✅ Milestone**: Anki users can migrate their decks
-
----
-
-## Phase 9: Security Hardening
-
-**Goal**: Address security vulnerabilities identified in code review
-
-### High Priority
-- [x] Add rate limiting to login endpoint (brute force protection)
-- [x] Configure CORS middleware
-
-### Medium Priority
-- [x] Fix card update authorization in sync push (verify existing card ownership)
-- [x] Unify password length requirement (add-user.ts: 8 chars → 15 chars)
-
-### Low Priority
-- [ ] Consider httpOnly cookie for token storage (XSS mitigation)
-
----
-
-## Future Considerations
-
-By priority:
-
-1. **Statistics and analytics** - Visualize learning progress
-2. **Keyboard shortcuts** - Improve study efficiency
-3. **Tags and search** - Organize decks and cards
-4. **Export functionality** - Data portability
-5. **Multiple card types** - Cloze deletion, etc.