The Node port (@kuns/claude-mailbox) is the recommended runtime and
covers all supported features. Maintaining a wire-compatible .NET twin
adds dual-impl tax with no remaining users, so remove src/, tests/,
solution + MSBuild files, NuGet config, and both .NET CI workflows.
Docs updated: README "Path C" build-from-source section dropped,
architecture diagram + Development section simplified, and node/README
no longer subtitles itself as a port of the .NET daemon.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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