docs: remove stale WinForms references, update test counts and capabilities
- README.md: Fix project table (OpenClaw.Tray → OpenClaw.Tray.WinUI),
remove WinForms run command, add system.run.prepare and system.which
to capability table and allowCommands JSON, remove '(investigating)'
from canvas.a2ui commands
- DEVELOPMENT.md: Remove OpenClaw.Tray/ from structure, add
OpenClaw.Tray.Tests/, update test counts (88 → 571), fix CI section
- build.ps1: Fix broken 'Tray' target to point at WinUI .csproj,
remove WinForms from default build and run instructions
- docs/VERSIONING.md: Remove reference to deleted OpenClaw.Tray.csproj
- docs/TEST_COVERAGE.md: Full rewrite (88 → 571 tests, .NET 9 → 10)
- docs/CODE_REVIEW.md: Update project names, test counts, .NET version
- docs/WINDOWS_NODE_TESTING.md: Mark system.run as implemented, update
capability descriptions
- docs/WINDOWS_NODE_ARCHITECTURE.md: Add historical planning note,
update current state table (Node mode now implemented)
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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