feat: Restore mood system and implement comprehensive memory editor UI

MOOD SYSTEM FIX:
- Mount bot/moods directory in docker-compose.yml for Cat container access
- Update miku_personality plugin to load mood descriptions from .txt files
- Add Cat logger for debugging mood loading (replaces print statements)
- Moods now dynamically loaded from working_memory instead of hardcoded neutral

docker-compose.yml

@@ -79,6 +79,7 @@ services:
       - ./cheshire-cat/cat/static:/app/cat/static
       - ./cat-plugins:/app/cat/plugins        # Shared plugins directory
       - ./cheshire-cat/cat/data:/app/cat/data  # Personality data (lore, prompts)
+      - ./bot/moods:/app/moods                 # Mood description files
       - ./cheshire-cat/cat/log.py:/app/cat/log.py  # Patched: fix loguru KeyError for third-party libs
     restart: unless-stopped
     healthcheck: