feat: Add NFO configuration settings (Task 7)

- Added NFOConfig model with TMDB API key, auto-create, media downloads, image size settings
- Created NFO settings section in UI with form fields and validation
- Implemented nfo-config.js module for loading, saving, and testing TMDB connection
- Added TMDB API key validation endpoint (POST /api/config/tmdb/validate)
- Integrated NFO config into AppConfig and ConfigUpdate models
- Added 5 unit tests for NFO config model validation
- Added API test for TMDB validation endpoint
- All 16 config model tests passing, all 10 config API tests passing
- Documented in docs/task7_status.md (100% complete)

src/server/web/static/js/index/config-manager.js

@@ -53,6 +53,9 @@ AniWorld.ConfigManager = (function() {
         // Main configuration
         bindMainEvents();
 
+        // NFO configuration
+        bindNFOEvents();
+
         // Status panel
         const closeStatus = document.getElementById('close-status');
         if (closeStatus) {
@@ -115,6 +118,21 @@ AniWorld.ConfigManager = (function() {
         }
     }
 
+    /**
+     * Bind NFO config events
+     */
+    function bindNFOEvents() {
+        const saveNFO = document.getElementById('save-nfo-config');
+        if (saveNFO) {
+            saveNFO.addEventListener('click', AniWorld.NFOConfig.save);
+        }
+
+        const testTMDB = document.getElementById('test-tmdb-connection');
+        if (testTMDB) {
+            testTMDB.addEventListener('click', AniWorld.NFOConfig.testTMDBConnection);
+        }
+    }
+
     /**
      * Bind main configuration events
      */
@@ -197,6 +215,7 @@ AniWorld.ConfigManager = (function() {
             await AniWorld.SchedulerConfig.load();
             await AniWorld.LoggingConfig.load();
             await AniWorld.AdvancedConfig.load();
+            await AniWorld.NFOConfig.load();
 
             modal.classList.remove('hidden');
         } catch (error) {