- Add dnd/dnd_test.cpp standalone app for HTML5 file drop testing
- Add dnd.spec.ts with 9 E2E tests (all passing)
- Update Makefile.wasm with dnd build target
- Update WHATWORKS.md with DnD status and coverage audit results
- Document identified gaps: wxPropertyGrid, virtual modes, pickers, etc.
- Update wxwidgets submodule with DnD support
Tests: 136 total (15 standalone apps)
Coverage: ~70% of KiCad-critical features
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
