fix: remove strictPort from E2E webServer to allow reusing dev server

- Update playwright.config.ts webServer command to use vite directly
- Remove --strictPort flag to allow reuseExistingServer to work properly
- E2E tests can now run while dev server is already running on port 5173

Author: nirukk52

frontend/playwright.config.ts

@@ -69,8 +69,9 @@ export default defineConfig({
   ],
 
   // Auto-start frontend if not running (optional)
+  // Note: Uses vite directly without --strictPort to allow reusing existing server
   webServer: {
-    command: "bun run dev",
+    command: "FRONTEND_PORT=${FRONTEND_PORT:-5173} vite dev --port ${FRONTEND_PORT:-5173}",
     url: FRONTEND_URL,
     reuseExistingServer: true,
     timeout: 120_000,