Fix timeframe selection bug and syntax errors

- Fixed critical timeframe mapping bug where '4h' was interpreted as '4 minutes'
- Now prioritizes minute values: '4h' -> ['240', '240m', '4h', '4H']
- Added fallback mechanism to enter exact minutes (240) in custom interval input
- Fixed multiple syntax errors in tradingview-automation.ts:
  * Missing closing parentheses in console.log statements
  * Missing parentheses in writeFile and JSON.parse calls
  * Fixed import statements for fs and path modules
  * Added missing utility methods (fileExists, markCaptchaDetected, etc.)
- Enhanced timeframe selection with comprehensive hour mappings (1h, 2h, 4h, 6h, 12h)
- Added detailed logging for debugging timeframe selection
- Application now builds successfully without syntax errors
- Interval selection should work correctly for all common timeframes

Key improvements:
✅ 4h chart selection now works correctly (240 minutes, not 4 minutes)
✅ All TypeScript compilation errors resolved
✅ Enhanced debugging output for timeframe mapping
✅ Robust fallback mechanisms for interval selection
✅ Docker integration and manual CAPTCHA handling maintained

app/api/test-captcha/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { tradingViewAutomation } from '../../../lib/tradingview-automation'
+
+export async function POST(req: NextRequest) {
+  try {
+    console.log('🧪 Testing manual CAPTCHA interaction...')
+    
+    // Initialize browser with manual CAPTCHA support
+    await tradingViewAutomation.init()
+    
+    // Try a login that will likely trigger CAPTCHA
+    const loginResult = await tradingViewAutomation.smartLogin()
+    
+    return NextResponse.json({
+      success: loginResult,
+      message: loginResult ? 'Login successful!' : 'Login failed or CAPTCHA interaction required',
+      timestamp: new Date().toISOString()
+    })
+    
+  } catch (error: any) {
+    console.error('Manual CAPTCHA test failed:', error)
+    return NextResponse.json({
+      error: error.message,
+      timestamp: new Date().toISOString()
+    }, { status: 500 })
+  }
+}
+
+export async function GET(req: NextRequest) {
+  return NextResponse.json({
+    message: 'Manual CAPTCHA test endpoint',
+    instructions: [
+      '1. Send a POST request to this endpoint to trigger login with manual CAPTCHA support',
+      '2. If CAPTCHA is detected, a browser window will appear (non-headless mode)',
+      '3. Manually click the "I am not a robot" checkbox',
+      '4. Complete any additional challenges',
+      '5. The automation will continue once CAPTCHA is solved'
+    ],
+    environment: {
+      allowManualCaptcha: process.env.ALLOW_MANUAL_CAPTCHA === 'true',
+      display: process.env.DISPLAY
+    }
+  })
+}