Fix \!backup command not working - module loading issue

Fixed BackupCommands module not being loaded into the bot system:
- Added BackupCommands to modules/__init__.py imports and __all__ list
- Added BackupCommands to module loading in run_bot_with_reconnect.py
- Fixed constructor signature to match BaseModule requirements

All 5 backup commands now properly registered and available to admin users:
- \!backup - Create manual database backups
- \!restore - Restore from backup files
- \!backups - List available backups
- \!backup_stats - Show backup system statistics
- \!backup_cleanup - Clean up old backups based on retention policy

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

modules/__init__.py

@@ -11,6 +11,7 @@ from .inventory import Inventory
 from .gym_battles import GymBattles
 from .team_builder import TeamBuilder
 from .npc_events import NPCEventsModule
+from .backup_commands import BackupCommands
 
 __all__ = [
     'CoreCommands',
@@ -22,5 +23,6 @@ __all__ = [
     'Inventory',
     'GymBattles',
     'TeamBuilder',
-    'NPCEventsModule'
+    'NPCEventsModule',
+    'BackupCommands'
 ]