- Add DailyMode/DailyDate fields to GameSession; use daily seed for floor generation
- Add [D] Daily Challenge button in lobby for solo daily sessions
- Record codex entries for monsters and shop items during gameplay
- Trigger unlock checks (fifth_class, hard_mode, mutations) on game over
- Trigger title checks (novice, explorer, veteran, champion, gold_king) on game over
- Save daily records on game over for daily mode sessions
- Add daily leaderboard tab with Tab key cycling in leaderboard view
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add title, lobby, class select, game, shop, and result screens.
Rewrite model.go with 6-screen state machine and input routing.
Wire server/ssh.go and main.go with lobby and store.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
