fix(playwright.config): update web server command and URL for local development

- Modified the web server command to use 'npm run start' in CI environments and 'npm run dev' locally.
- Changed the URL from 'http://127.0.0.1:3000' to 'http://localhost:3000' for consistency.
- Added a port specification for clarity.

playwright.config.ts

@@ -65,8 +65,9 @@ export default defineConfig({
 
   /* Run your local dev server before starting the tests */
   webServer: {
-    command: 'npm run dev',
+    command: process.env.CI ? 'npm run start' : 'npm run dev',
-    url: 'http://127.0.0.1:3000',
+    url: 'http://localhost:3000',
+    port: 3000,
     reuseExistingServer: !process.env.CI,
   },
 });