feat: Fix TypeScript errors and implement Docker Compose V2 deployment

- Fix TypeScript errors in enhanced-screenshot.ts and tradingview-automation.ts
  - Add proper type assertions for page.screenshot() path parameter
  - Ensure compatibility with strict TypeScript compilation
- Verify Docker Compose V2 deployment working on port 9000
- Application successfully containerized and production-ready
- All build processes pass without TypeScript errors

Ready for easy deployment on any machine with Docker & Docker Compose V2

lib/tradingview-automation.ts

@@ -2488,7 +2488,7 @@ export class TradingViewAutomation {
         // Fallback to full page screenshot
         console.log("⚠️ Chart area not found, taking full page screenshot")
         await this.page.screenshot({
-          path: filePath,
+          path: filePath as `${string}.png`,
           fullPage: true,
           type: 'png'
         })
@@ -2517,7 +2517,7 @@ export class TradingViewAutomation {
       await fs.mkdir(path.dirname(filePath), { recursive: true })
       
       await this.page.screenshot({
-        path: filePath,
+        path: filePath as `${string}.png`,
         fullPage: true,
         type: 'png'
       })