feat(ui): SoC Refactoring & Config Validation

- Theme Context ausgelagert (ThemeContext.tsx + useDarkMode.ts)
- Config Validation mit TMDB-API-Key Pflicht (config_validation.py)
- Cache Key Centralization (cache/keys.py)
- CD-Ripping mit abcde implementiert (Worker)
- Docker Compose mit Healthchecks & LOG_LEVEL
- ROADMAP.md & SAVEPOINT.md aktualisiert

docker/api/main.py

@@ -14,6 +14,7 @@ import time
 from fastapi.security import OAuth2PasswordBearer
 
 from config import settings
+from config_validation import validate_config, ConfigValidationError
 from cache import init_cache, set
 from auth import create_access_token, create_refresh_token, decode_token, is_blacklisted
 from ratelimit import check_rate_limit, get_rate_limit_remaining, validate_api_key
@@ -36,8 +37,13 @@ sse_connections: List = []
 
 @app.on_event("startup")
 async def startup_event():
-    """Initialisiere Cache beim Start."""
+    """Initialisiere Cache beim Start und validiere Konfiguration."""
     init_cache()
+    
+    try:
+        validate_config()
+    except ConfigValidationError as e:
+        print(f"⚠️  Konfigurations-Warnung: {e}")
 
 
 # Middleware für Rate-Limiting
@@ -189,8 +195,9 @@ async def lookup_metadata(request: MetadataLookupRequest):
 @app.post("/metadata/confirm")
 async def confirm_metadata(title: str, year: Optional[int] = None, metadata: Dict = None):
     """Bestätige Metadaten."""
+    from cache.keys import generate_confirmed_key
     # In Cache speichern
-    cache_key = f"confirmed:{title}:{year}"
+    cache_key = generate_confirmed_key(title, year)
     set(cache_key, {"title": title, "year": year, "metadata": metadata or {}})
     
     return {"status": "confirmed", "key": cache_key}