fix: Progress window not disappearing after analysis completion

- Clear loading and progress state immediately after successful analysis
- Remove dependency on progress tracking EventSource for UI state reset
- Ensure progress window disappears for both single and batch analysis
- Simplify state management by handling completion explicitly in performAnalysis
- Fix user experience issue where progress window remained stuck

components/AIAnalysisPanel.tsx

@@ -299,9 +299,9 @@ export default function AIAnalysisPanel({ onAnalysisComplete }: AIAnalysisPanelP
 
         setResult(data)
         
-        // For single timeframe analysis, don't set loading to false yet
-        // Let the progress tracking handle UI state reset
-        console.log(`🔍 API call completed for ${sessionId}, progress tracking will handle UI reset`)
+        // Clear loading and progress state after successful single timeframe analysis
+        setLoading(false)
+        setProgress(null)
         
         // Call the callback with analysis result if provided
         if (onAnalysisComplete && data.analysis) {
@@ -359,6 +359,10 @@ export default function AIAnalysisPanel({ onAnalysisComplete }: AIAnalysisPanelP
 
         setResult(multiResult)
         
+        // Clear loading and progress state after successful batch analysis
+        setLoading(false)
+        setProgress(null)
+        
         // Call the callback with analysis result if provided
         if (onAnalysisComplete && data.analysis) {
           onAnalysisComplete(data.analysis, analysisSymbol)
@@ -389,12 +393,8 @@ export default function AIAnalysisPanel({ onAnalysisComplete }: AIAnalysisPanelP
         return prev
       })
     } finally {
-      // Always reset concurrency flag, but only reset loading for multi-timeframe analysis
-      // Single timeframe analysis loading state is managed by progress tracking
+      // Always reset concurrency flag
       analysisInProgress.current = false
-      if (analysisTimeframes.length > 1) {
-        setLoading(false)
-      }
     }
   }