Read codec/bitrate from current settings at fix time, not scan time

The lossy converter fix handler now reads codec and bitrate fresh
from the Settings page when converting, not from what was stored
in the finding details at scan time. Users can change their codec
preference after scanning and Fix All will use the new setting.

core/repair_worker.py

@@ -1910,13 +1910,21 @@ class RepairWorker:
             return {'success': False, 'error': str(e)}
 
     def _fix_missing_lossy_copy(self, entity_type, entity_id, file_path, details):
-        """Convert a FLAC file to the configured lossy codec using ffmpeg."""
+        """Convert a FLAC file to the configured lossy codec using ffmpeg.
+
+        Always reads codec/bitrate from current settings (not finding details)
+        so the user can change their preference after scanning.
+        """
         if not file_path:
             return {'success': False, 'error': 'No file path associated with this finding'}
 
-        codec = details.get('codec', 'mp3')
-        bitrate = details.get('bitrate', '320')
-        quality_label = details.get('quality_label', f'{codec.upper()}-{bitrate}')
+        # Read fresh from current settings — not from finding details
+        codec = 'mp3'
+        bitrate = '320'
+        if self._config_manager:
+            codec = self._config_manager.get('lossy_copy.codec', 'mp3').lower()
+            bitrate = self._config_manager.get('lossy_copy.bitrate', '320')
+        quality_label = f'{codec.upper()}-{bitrate}'
 
         codec_configs = {
             'mp3':  ('libmp3lame', '.mp3',  ['-id3v2_version', '3']),