yarn create fumadocs-app template fails

### To Reproduce 1. run `yarn create fumadocs-app` 2. select default options 3. cd into the created directory 4. run `yarn dev` ### Current vs. Expected behavior Current: ``` TypeError: Cannot read properties of undefined (reading '.js') ``` Expected: No error ### Provide environment information ```bash Operating System: Platform: Ubuntu Arch: AMD64 (x86-64) Version: Ubuntu 24.04.3 LTS Binaries: yarn: 4.14.1 node: 24.16.0 ``` ### Which area(s) are affected? (Select all that apply) CLI (create-fumadocs-app) ### Additional context _No response_