Core Changes

• Codemod for Async Request API: #69572
• Extract createAppRouteCode from next-app-loader.ts: #70352
• [Type Definition] - Updates the manifest types to reflect the current specifications: #68273
• Fix middleware experimental trace case: #70372

Credits

Huge thanks to @huozhi, @unstubbable, @coderfin, and @ijjk for helping!