- On macOS, pasting now inserts the actual file path when the clipboard
contains a file URL (public.file-url/public.url)
- Terminal paste remains text-only; no temp files or data URLs are
created. If only raw image bytes exist on the clipboard, paste is a
no-op.
- Scope: macOS only; no dependency changes.
- Added a test (test_file_url_converts_to_path) that verifies URL→path
conversion using a unique pasteboard.

Release Notes:

- Improved pasting on macOS: now inserts the actual file path when the
clipboard contains a file URL (enables image paste support for Claude
Code)