* fix(install): add rust, cpp, csharp to legacy language alias map
The legacy installer compatibility layer in install-manifests.js was
missing entries for rust, cpp, and csharp — languages that have
rules/ directories and (for rust/cpp) install-components.json entries.
Running `./install.sh rust` fails with "Unknown legacy language: rust"
because LEGACY_LANGUAGE_ALIAS_TO_CANONICAL and
LEGACY_LANGUAGE_EXTRA_MODULE_IDS didn't include these languages.
Fixes the issue reported in #694 by @mpiton.
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via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
* fix(install): complete csharp legacy support and add resolution tests
- Add lang:csharp component to install-components.json with
framework-language module (matching cpp/rust pattern)
- Update csharp mapping in LEGACY_LANGUAGE_EXTRA_MODULE_IDS from
empty array to ['framework-language']
- Add end-to-end resolution tests for rust, cpp, and csharp verifying
framework-language module is included in resolved moduleIds
Addresses review feedback from Copilot, Greptile, CodeRabbit, and Cubic.
Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)
Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>
---------
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: Happy <yesreply@happy.engineering>
