Refactor bot with 17 issue fixes: logging, caching, error handling, security
- Add RotatingFileHandler for log rotation (fixes #21) - Add MetricsCollector for command/error tracking (fixes #20) - Add discord.py cooldown decorator on /ask (fixes #19) - Add ConfigValidator for startup config checks (fixes #17) - Add /status health check command for admins (fixes #16) - Add autocomplete for /minecraft usernames (fixes #15) - Add AuditLogger with batched queue + periodic flush (fixes #14) - Add MediaManager with lazy-load cache (fixes #13) - Add UsernameCache with TTL for Mojang API (fixes #12) - Extract magic numbers to named constants (fixes #11) - DRY kill/punch/hug/revive into send_interaction_media (fixes #10) - Add handle_command_errors decorator for consistent error handling (fixes #9) - Add sanitize_input() for /ask question input (fixes #8) - Move Ollama URL to OLLAMA_URL env var (fixes #7) - Only log commands, not all message content (fixes #6) - Wrap RCON in async executor with timeout (fixes #5) - Reuse shared aiohttp.ClientSession on CustomBot (fixes #4) - Validate RCON/Pelican/Ollama config on startup (fixes #3) - Replace ask_cooldowns dict with CooldownManager + auto-cleanup (fixes #2) Note: #18 (MariaDB) deferred - requires database infrastructure setup. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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