TypeScript VS code extension does not work properly for API routes

### Link to the code that reproduces this issue https://github.com/jakeleventhal/next-types-issue ### To Reproduce Open `app/page.tsx` and `app/api/route.ts` and observe no type errors in `route.ts` in your IDE. <img width="1295" alt="Image" src="https://github.com/user-attachments/assets/421fb116-d66e-4fb5-8182-197b73abbcc2" /> ### Current vs. Expected behavior I expected the `revalidate` export to show a type error in both `app/page.tsx` and `app/api/route.ts`, but only the `page.tsx` shows an error. ### Provide environment information ```bash Operating System: Platform: darwin Arch: arm64 Version: Darwin Kernel Version 24.4.0: Tue Mar 4 21:05:34 PST 2025; root:xnu-11417.100.576.505.3~2/RELEASE_ARM64_T6000 Available memory (MB): 65536 Available CPU cores: 10 Binaries: Node: 20.18.1 npm: 10.8.2 Yarn: 1.22.22 pnpm: 9.15.9 Relevant Packages: next: 15.3.0-canary.10 // Latest available version is detected (15.3.0-canary.10). eslint-config-next: N/A react: 19.0.0 react-dom: 19.0.0 typescript: 5.8.2 Next.js Config: output: N/A ``` ### Which area(s) are affected? (Select all that apply) TypeScript ### Which stage(s) are affected? (Select all that apply) next dev (local) ### Additional context _No response_