fix: timeframe handling and progress tracking improvements

- Fix timeframe parameter handling in enhanced-screenshot API route
- Support both 'timeframe' (singular) and 'timeframes' (array) parameters
- Add proper sessionId propagation for real-time progress tracking
- Enhance MACD analysis prompt with detailed crossover definitions
- Add progress tracker service with Server-Sent Events support
- Fix Next.js build errors in chart components (module variable conflicts)
- Change dev environment port from 9000:3000 to 9001:3000
- Improve AI analysis layout detection logic
- Add comprehensive progress tracking through all service layers

SCREENSHOT_PATH_FIXES.md

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+# 🔧 Screenshot Path & SSE Fixes
+
+## Issues Fixed
+
+### 1. Screenshot File Path Duplication
+**Problem**: Screenshot paths were showing `/app/screenshots/app/screenshots/...` causing ENOENT errors.
+
+**Root Cause**: The `takeScreenshot()` method returns a full absolute path, but `analyzeScreenshot()` was treating it as a filename and joining it with the screenshots directory again.
+
+**Solution**: Updated both `analyzeScreenshot()` and `analyzeMultipleScreenshots()` methods to handle both full paths and filenames:
+
+```typescript
+// Check if it's already a full path or just a filename
+if (path.isAbsolute(filenameOrPath)) {
+  // It's already a full path
+  imagePath = filenameOrPath
+} else {
+  // It's just a filename, construct the full path
+  const screenshotsDir = path.join(process.cwd(), 'screenshots')
+  imagePath = path.join(screenshotsDir, filenameOrPath)
+}
+```
+
+### 2. Next.js Async Params Issue
+**Problem**: SSE endpoint was using `params.sessionId` without awaiting it, causing Next.js 15 error.
+
+**Solution**: Updated the SSE endpoint to properly await params:
+
+```typescript
+// Before
+{ params }: { params: { sessionId: string } }
+const { sessionId } = params
+
+// After  
+{ params }: { params: Promise<{ sessionId: string }> }
+const { sessionId } = await params
+```
+
+## Files Modified
+
+1. **`/lib/ai-analysis.ts`**:
+   - Fixed `analyzeScreenshot()` to handle full paths
+   - Fixed `analyzeMultipleScreenshots()` to handle full paths
+   - Updated variable references
+
+2. **`/app/api/progress/[sessionId]/stream/route.ts`**:
+   - Added proper async/await for params in Next.js 15
+
+## Testing
+
+After these fixes:
+✅ Screenshots should save and load correctly
+✅ AI analysis should find screenshot files
+✅ SSE progress tracking should work without Next.js warnings
+✅ Real-time progress updates should function properly
+
+## No Docker Restart Required
+
+These are runtime fixes that don't require a Docker container restart. The application should work immediately after the files are updated.