ca27a0b687
- Add RequestSizeLimitMiddleware that checks Content-Length header before request body is read: non-multipart requests capped at MAX_REQUEST_BODY_SIZE (default 1 MB), multipart uploads capped at MAX_UPLOAD_SIZE (default 1 GB). Returns HTTP 413 on violation. - Register middleware in app/main.py - Add max_request_body_size setting to app/config.py - Fix ui_upload in files.py to check Content-Length early and read in 64 KB chunks (bounded memory usage), removing the post-write os.path.getsize check - Document MAX_REQUEST_BODY_SIZE in .env.demo and ConfigurationGuide.md - Mark SECURITY_AUDIT.md item #4 as resolved - Add 9 tests in test_request_size_limit.py - Update test_upload_file_too_large to use patch.object instead of the now-unused os.path.getsize mock Closes #173 Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>