FIX: FocusVideoPlayer video library access

Video Library Integration:
- Fixed video library access to use videoManager.videoLibrary structure
- Added support for all categories: task, background, reward, punishment
- Enhanced logging to show videos found per category
- Added fallback for different video manager implementations

 Compatibility:
- Works with actual VideoPlayerManager structure
- Better error handling and debugging information
- Should now find videos if they exist in the library

src/features/media/focusVideoPlayer.js

@@ -66,11 +66,25 @@ class FocusVideoPlayer extends BaseVideoPlayer {
         }
 
         this.videoLibrary = [];
-        const categories = ['task', 'background', 'reward'];
-
-        for (const category of categories) {
-            const videos = videoManager.getVideosByCategory?.(category) || [];
-            this.videoLibrary.push(...videos);
+        
+        // Check if videoManager has videoLibrary structure
+        if (videoManager.videoLibrary) {
+            const categories = ['task', 'background', 'reward', 'punishment'];
+            
+            for (const category of categories) {
+                const videos = videoManager.videoLibrary[category] || [];
+                this.videoLibrary.push(...videos);
+                console.log(`🧘 📹 Found ${videos.length} videos in ${category} category`);
+            }
+        } else if (videoManager.getVideosByCategory) {
+            // Fallback for different video manager implementations
+            const categories = ['task', 'background', 'reward'];
+            for (const category of categories) {
+                const videos = videoManager.getVideosByCategory(category) || [];
+                this.videoLibrary.push(...videos);
+            }
+        } else {
+            console.warn('🧘 ⚠️ Video manager structure not recognized');
         }
 
         console.log(`🧘 🎬 Initialized focus video library with ${this.videoLibrary.length} videos`);