Improve Video Learning Agent with action-based detection and analysis toggle

- Change video detection from screenshot hash to action-based (Swipe detection)
- Add enable_analysis toggle to disable VLM screenshot analysis
- Improve task prompt to prevent VLM from stopping prematurely
- Add debug logging for action detection troubleshooting
- Fix ModelResponse attribute error (content -> raw_content)

Co-Authored-By: Claude <noreply@anthropic.com>

dashboard/static/js/video-learning.js

@@ -19,6 +19,7 @@ const VideoLearningModule = {
             targetCount = 10,
             category = null,
             watchDuration = 3.0,
+            enableAnalysis = true,
         } = options;
 
         try {
@@ -28,6 +29,7 @@ const VideoLearningModule = {
                 target_count: targetCount,
                 category: category,
                 watch_duration: watchDuration,
+                enable_analysis: enableAnalysis,
             });
 
             this.currentSessionId = response.data.session_id;

dashboard/static/video-learning.html

@@ -97,6 +97,14 @@
                         <small>Leave empty to watch recommended videos</small>
                     </div>
 
+                    <div class="form-group checkbox-group">
+                        <label>
+                            <input type="checkbox" v-model="config.enableAnalysis" :disabled="loading">
+                            <span>Enable Screenshot Analysis</span>
+                        </label>
+                        <small>Analyze video content using VLM to extract description, likes, comments, tags, etc.</small>
+                    </div>
+
                     <button @click="createAndStartSession" class="btn btn-primary" :disabled="loading || !config.deviceId">
                         <svg v-if="loading" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" class="spinning">
                             <path d="M21 12a9 9 0 1 1-6.219-8.56"></path>
@@ -269,6 +277,7 @@
                         targetCount: 10,
                         category: '',
                         watchDuration: 3.0,
+                        enableAnalysis: true,
                     },
                 };
             },
@@ -304,6 +313,7 @@
                                 targetCount: this.config.targetCount,
                                 category: this.config.category || null,
                                 watchDuration: this.config.watchDuration,
+                                enableAnalysis: this.config.enableAnalysis,
                             }
                         );
 
@@ -354,7 +364,12 @@
 
                     try {
                         await VideoLearningModule.controlSession(this.currentSessionId, 'stop');
-                        await this.updateSessionStatus();
+                        // Stop polling first
+                        VideoLearningModule.stopPolling();
+                        // Mark session as stopped in UI
+                        if (this.sessionStatus) {
+                            this.sessionStatus.is_active = false;
+                        }
                         this.showToast('Session stopped', 'info');
                     } catch (error) {
                         this.showToast('Failed to stop session', 'error');