b872b1cad9
feat: implement Phase 1b core features and Phase 1c commercialization
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Phase 1b — Core Features:
- Huawei ID Kit login (token exchange + user info) with guest mode
- Quiz engine: randomized questions, distractor shuffling, answer verification
- XP service with combo bonuses (3/5/10-hit streaks), daily reset
- Streak service: >=3 correct/day, freeze, UTC date handling
- Hearts service: 5/day, 30min auto-restore, Pro unlimited
- 50 quiz questions across 3 categories (history/drama/crosstalk)
- 13 skill tree chapters with linear progression
- Idempotent seed import script (categories → skill tree → questions)
- 7 admin CRUD services (questions, categories, knowledge cards,
skill tree, users, stats, feedback) with Zod validation
- All routes use Zod schema validation, /auth/me endpoint
Phase 1c — Commercialization:
- Leaderboard with live XP ranking, 10 tiers, weekly settlement
- Achievement system with 15 seed achievements and condition checking
- Huawei IAP receipt verification + subscription management
- Differentiated rate limiting (auth 10/min, quiz 60/min)
- Admin audit logging middleware
Infrastructure:
- Vitest test framework with DB mock utilities (19 tests passing)
- 12 DB tables (5 new: question_ratings, user_feedback, achievements,
user_achievements, leaderboard_snapshots, subscriptions, admin_audit_log)
- TypeScript strict mode: zero errors
2026-04-09 00:12:12 +08:00
