The OS clipboard's file list was only wired up for Windows (CF_HDROP), so on
macOS the project view never saw files copied in Finder: Paste stayed disabled
and ⌘V did nothing. Read and write the general NSPasteboard's file URLs
instead, so Finder's copies paste into the project view and the project view's
copies paste in Finder.
Closes#246
Co-authored-by: Claude Opus 5.5 <[email protected]>
Exchange files with the OS clipboard on Windows: CF_HDROP read/write in a new ide-clipboard crate (Win32 FFI behind cfg(windows), stub elsewhere), three thin commands, and project-view copy/paste hooks. Pasting from Explorer always copies; our own hand-off falls back to the internal clipboard so Copy/Move dialogs and refactoring stay intact.
Verified: ide-clipboard round-trip tests, project-tree vitest (93), CI on all three OSes. Not verified on Windows hardware here.
Claude-Session: https://claude.ai/code/session_01VUYsdXA2nkF5v6zsC93dpn
JawтаClaude Opus 5.5
kevinh