- Fix API to return JSON response for file content instead of plain text
- Fix file display showing [object Object] by properly extracting content field
- Fix infinite save loop by tracking last saved content
- Remove auto-save that was causing cursor jumping on every keystroke
- Add manual save button with disabled state when content unchanged
- Add validation in FileList to prevent undefined filenames
- Improve error handling for file operations
Add cross-origin resource sharing support to the backend API to fix
frontend console errors when accessing resources from different origins.
The middleware handles preflight requests and includes necessary CORS
headers for API endpoints.
Fixes: Cross-Origin Request Blocked error
Downgrade eslint to v8.57.0 and TypeScript to v4.9.5 to match
react-scripts@5.0.1 requirements. Force install ajv@8.17.1 and
ajv-keywords@5.1.0 to resolve peer dependency conflicts. Add missing
dependencies (remark-gfm, rehype-highlight, @testing-library/dom).
Update test imports to work with @testing-library/react@16.
