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/cache/keys.py

@@ -0,0 +1,49 @@
+"""Zentrale Cache-Key-Definitionen für Rippy API."""
+
+from typing import Final
+
+# Pre-Scan Keys
+PRESCAN_AUDIO_PREFIX: Final[str] = "prescan:audio:"
+PRESCAN_VIDEO_PREFIX: Final[str] = "prescan:video:"
+PRESCAN_KEY_TEMPLATE: Final[str] = "{prefix}{device_path}"
+
+# Metadaten Keys
+METADATA_TMDB_PREFIX: Final[str] = "tmdb:"
+METADATA_MUSICBRAINZ_PREFIX: Final[str] = "musicbrainz:"
+METADATA_THETVDB_PREFIX: Final[str] = "thetvdb:"
+
+# Confirmed Metadata
+CONFIRMED_METADATA_PREFIX: Final[str] = "confirmed:"
+CONFIRMED_KEY_TEMPLATE: Final[str] = "{prefix}{title}:{year}"
+
+# Device Info
+DEVICE_INFO_PREFIX: Final[str] = "device:info:"
+DEVICE_INFO_KEY_TEMPLATE: Final[str] = "{prefix}{device_path}"
+
+# Job Results
+JOB_RESULTS_PREFIX: Final[str] = "job:results:"
+JOB_RESULTS_KEY_TEMPLATE: Final[str] = "{prefix}{job_id}"
+
+# Fallback Values (für Fallback-UI)
+FALLBACK_CONFIDENCE: Final[float] = 0.3
+FALLBACK_YEAR: Final[int] = 2000
+FALLBACK_TITLE: Final[str] = "Unbekannter Titel"
+
+
+def generate_prescan_key(device_path: str, is_audio: bool = False) -> str:
+    """Generiere Cache-Key für Pre-Scan."""
+    prefix = PRESCAN_AUDIO_PREFIX if is_audio else PRESCAN_VIDEO_PREFIX
+    return f"{prefix}{device_path}"
+
+
+def generate_confirmed_key(title: str, year: Optional[int] = None) -> str:
+    """Generiere Cache-Key für bestätigte Metadaten."""
+    year_str = str(year) if year else "0"
+    return f"confirmed:{title}:{year_str}"
+
+
+def generate_tmdb_key(endpoint: str, params: Optional[Dict] = None) -> str:
+    """Generiere Cache-Key für TMDB API."""
+    if params:
+        return f"{METADATA_TMDB_PREFIX}{endpoint}:{str(params)}"
+    return f"{METADATA_TMDB_PREFIX}{endpoint}"