Fix missing file errors and clean up theme system

- Remove reference to non-existent image-discovery-fix.js file
- Add error handling for missing theme CSS files
- Update discoverImages method to work without external fix file
- Remove unsupported theme options from dropdown
- Prevents ERR_FILE_NOT_FOUND errors in console

index.html

@@ -231,9 +231,6 @@
                             <label for="theme-dropdown" class="option-label">Choose Your Vibe:</label>
                             <select id="theme-dropdown" class="theme-dropdown">
                                 <option value="balanced-purple" selected>💜 Balanced Purple (Default)</option>
-                                <option value="balanced-red">❤️ Balanced Red</option>
-                                <option value="balanced-blue">💙 Balanced Blue</option>
-                                <option value="balanced-green">💚 Balanced Forest Green</option>
                             </select>
                         </div>
                         
@@ -1939,7 +1936,6 @@
     <script src="src/features/images/popupImageManager.js"></script>
     <script src="src/features/tasks/aiTaskManager.js"></script>
     <script src="src/features/audio/audioManager.js"></script>
-    <script src="src/features/images/image-discovery-fix.js"></script>
     <script src="src/core/gameModeManager.js"></script>
     <script src="src/features/webcam/webcamManager.js"></script>
     <script src="src/features/tts/voiceManager.js"></script>

src/core/game.js

@@ -1577,11 +1577,26 @@ class TaskChallengeGame {
     }
 
     async discoverImages() {
-        console.log('🚀 Original discoverImages method - will be overridden by fix');
-        // This method will be replaced by the image-discovery-fix.js
-        gameData.discoveredTaskImages = [];
-        gameData.discoveredConsequenceImages = [];
-        this.imageDiscoveryComplete = true;
+        console.log('<27> Discovering images from directories...');
+        
+        try {
+            gameData.discoveredTaskImages = [];
+            gameData.discoveredConsequenceImages = [];
+            
+            // Use fileManager to discover images
+            if (this.fileManager && this.fileManager.isElectron) {
+                // Discovery is handled by the main initialization process
+                console.log('📸 Image discovery delegated to file manager');
+            } else {
+                console.log('⚠️ File manager not available for image discovery');
+            }
+            
+            this.imageDiscoveryComplete = true;
+            console.log('✅ Image discovery completed');
+        } catch (error) {
+            console.error('❌ Error during image discovery:', error);
+            this.imageDiscoveryComplete = true; // Mark as complete even on error
+        }
     }
 
     getEmbeddedManifest() {
@@ -2945,6 +2960,15 @@ class TaskChallengeGame {
             themeLink.id = 'dynamic-theme';
             themeLink.rel = 'stylesheet';
             themeLink.href = `${themeName}-theme.css`;
+            
+            // Handle missing theme files gracefully
+            themeLink.onerror = () => {
+                console.warn(`Theme file ${themeName}-theme.css not found, falling back to default theme`);
+                themeLink.remove();
+                // Fall back to default theme
+                localStorage.setItem('gameTheme', 'balanced-purple');
+            };
+            
             document.head.appendChild(themeLink);
         }
         // balanced-purple is our default theme loaded in the HTML, so no need to load additional CSS