Disable M3U export by default

Set m3u_export.enabled default to false and update the UI so the M3U auto-save checkbox is unchecked unless explicitly enabled. Changes: config/settings.py flips the default to false, webui/index.html removes the checked attribute from the checkbox, and webui/static/script.js adjusts the logic to only check the box when settings.m3u_export.enabled === true. This prevents automatic M3U exports for users who don't explicitly opt in.

config/settings.py

@@ -229,7 +229,7 @@ class ConfigManager:
                 "staging_path": "./Staging"
             },
             "m3u_export": {
-                "enabled": True
+                "enabled": False
             }
         }
 

webui/index.html

@@ -3384,7 +3384,7 @@
 
                                 <div class="form-group">
                                     <label class="checkbox-label">
-                                        <input type="checkbox" id="m3u-export-enabled" checked>
+                                        <input type="checkbox" id="m3u-export-enabled">
                                         Auto-save M3U file when downloading playlists and albums
                                     </label>
                                 </div>

webui/static/script.js

@@ -1846,7 +1846,7 @@ async function loadSettingsData() {
             settings.lossy_copy?.enabled ? 'block' : 'none';
 
         // Populate M3U Export settings
-        document.getElementById('m3u-export-enabled').checked = settings.m3u_export?.enabled !== false;
+        document.getElementById('m3u-export-enabled').checked = settings.m3u_export?.enabled === true;
 
         // Populate Logging information (read-only)
         document.getElementById('log-level-display').textContent = settings.logging?.level || 'INFO';