chore: Ignore entire config directory

.gitignore

@@ -33,17 +33,8 @@ hotkey_daemon.py
 # Personal documentation (not part of the public repo)
 APP_ERKLÄRUNG.md
 
-# Local bind-mount data — keep directory, ignore contents
-config/settings.json
-config/voice_design_presets.json
-config/tts_routes.json
-config/*.db
-config/*.db-shm
-config/*.db-wal
-config/reader_library/
-config/audiobook_batch_cache/
-config/audiobook_exports/
-config/line_audio_cache/
+# Local bind-mount data
+config/
 logs/*.log
 logs/*.log.*
 
@@ -58,6 +49,5 @@ playwright-report/
 static/dist/
 
 # Local caches / scratch / recovery artifacts
-config/fishaudio_cache/
 claude studio/
 *.recovered-*.yml