Multiplayer:
- Add WaitingScreen between class select and game start; previously
selecting a class immediately started the game and locked the room,
preventing other players from joining
- Add periodic lobby room list refresh (2s interval)
- Add LeaveRoom method for backing out of waiting room
Combat & mechanics:
- Mark invalid attack targets with TargetIdx=-1 to suppress misleading
"0 dmg" combat log entries
- Make Freeze effect actually skip frozen player's action (was purely
cosmetic before - expired during tick before action processing)
- Implement Life Siphon relic heal-on-damage effect (was defined but
never applied in combat)
- Fix combo matching to track used actions and prevent reuse
Game modes:
- Wire up weekly mutations to GameSession via ApplyWeeklyMutation()
- Implement 3 mutation runtime effects: no_shop, glass_cannon, elite_flood
- Pass HardMode toggle from lobby UI through Context to GameSession
- Apply HardMode difficulty multipliers (1.5x monsters, 2x shop, 0.5x heal)
Polish:
- Set starting room (index 0) to always be Empty (safe start)
- Distinguish shop purchase errors: "Not enough gold" vs "Inventory full"
- Record random events in codex for discovery tracking
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace log.Printf/Println with slog.Info/Error/Warn across the codebase.
Initialize slog with JSON handler in main.go. Add panic recovery defer
in SSH session handler. Add structured game event logging (room created,
player joined, game started, game over, player inactive removed).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
