feat: Implement comprehensive non-hierarchical logging system

- Created new logging infrastructure with per-component filtering
- Added 6 log levels: DEBUG, INFO, API, WARNING, ERROR, CRITICAL
- Implemented non-hierarchical level control (any combination can be enabled)
- Migrated 917 print() statements across 31 files to structured logging
- Created web UI (system.html) for runtime configuration with dark theme
- Added global level controls to enable/disable levels across all components
- Added timestamp format control (off/time/date/datetime options)
- Implemented log rotation (10MB per file, 5 backups)
- Added API endpoints for dynamic log configuration
- Configured HTTP request logging with filtering via api.requests component
- Intercepted APScheduler logs with proper formatting
- Fixed persistence paths to use /app/memory for Docker volume compatibility
- Fixed checkbox display bug in web UI (enabled_levels now properly shown)
- Changed System Settings button to open in same tab instead of new window

Components: bot, api, api.requests, autonomous, persona, vision, llm,
conversation, mood, dm, scheduled, gpu, media, server, commands,
sentiment, core, apscheduler

All settings persist across container restarts via JSON config.

bot/utils/autonomous_persistence.py

@@ -8,6 +8,9 @@ import time
 from pathlib import Path
 from typing import Dict, Optional
 from datetime import datetime, timezone
+from utils.logger import get_logger
+
+logger = get_logger('autonomous')
 
 CONTEXT_FILE = Path("memory/autonomous_context.json")
 
@@ -48,9 +51,9 @@ def save_autonomous_context(server_contexts: dict, server_last_action: dict):
         CONTEXT_FILE.parent.mkdir(parents=True, exist_ok=True)
         with open(CONTEXT_FILE, 'w') as f:
             json.dump(data, f, indent=2)
-        print(f"💾 [V2] Saved autonomous context for {len(server_contexts)} servers")
+        logger.info(f"[V2] Saved autonomous context for {len(server_contexts)} servers")
     except Exception as e:
-        print(f"⚠️ [V2] Failed to save autonomous context: {e}")
+        logger.error(f"[V2] Failed to save autonomous context: {e}")
 
 
 def load_autonomous_context() -> tuple[Dict[int, dict], Dict[int, float]]:
@@ -63,7 +66,7 @@ def load_autonomous_context() -> tuple[Dict[int, dict], Dict[int, float]]:
     - Timestamps are adjusted for elapsed time
     """
     if not CONTEXT_FILE.exists():
-        print("ℹ️ [V2] No saved context found, starting fresh")
+        logger.info("[V2] No saved context found, starting fresh")
         return {}, {}
     
     try:
@@ -74,7 +77,7 @@ def load_autonomous_context() -> tuple[Dict[int, dict], Dict[int, float]]:
         downtime = time.time() - saved_at
         downtime_minutes = downtime / 60
         
-        print(f"📂 [V2] Loading context from {downtime_minutes:.1f} minutes ago")
+        logger.info(f"[V2] Loading context from {downtime_minutes:.1f} minutes ago")
         
         context_data = {}
         last_action = {}
@@ -106,13 +109,13 @@ def load_autonomous_context() -> tuple[Dict[int, dict], Dict[int, float]]:
             if last_action_timestamp > 0:
                 last_action[guild_id] = last_action_timestamp
         
-        print(f"✅ [V2] Restored context for {len(context_data)} servers")
-        print(f"   └─ Momentum decay factor: {decay_factor:.3f} (from {downtime_minutes:.1f}min downtime)")
+        logger.info(f"[V2] Restored context for {len(context_data)} servers")
+        logger.debug(f"   └─ Momentum decay factor: {decay_factor:.3f} (from {downtime_minutes:.1f}min downtime)")
         
         return context_data, last_action
         
     except Exception as e:
-        print(f"⚠️ [V2] Failed to load autonomous context: {e}")
+        logger.error(f"[V2] Failed to load autonomous context: {e}")
         return {}, {}