feat: support trae editor

[narcilee7]

Related Issue

N/A (New feature request)

Description

This PR introduces full support for the Trae editor in both the Shell and Web UI environments.

Changes

1. Shell Support:

   • Added trae (with --wait flag) to the auto-detected editors list in src/kimi_cli/utils/editor.py.
   • Added trae to the candidate list (checked after code ,vim ,vi ,nano ).
   • Added unit tests in tests/utils/test_editor.py to verify prioritization.

2. Web UI Support:

   • Backend: Updated src/kimi_cli/web/api/open_in.py to support the trae application type, utilizing open -a Trae on macOS.
   • Frontend:
     • Updated OpenInRequest.ts model to include Trae.
     • Added "Trae" to the "Open In" menu in web/src/features/chat/components/open-in-menu.tsx.

3. Documentation:

   • Updated docs/en/reference/keyboard.md and docs/zh/reference/keyboard.md to list Trae as a supported editor.
   • Updated CHANGELOG.md with entries for both Shell and Web UI support.

Checklist

• I have read the https://github.com/MoonshotAI/kimi-cli/blob/main/CONTRIBUTING.md document.
• I have linked the related issue, if any.
• I have added tests that prove my fix is effective or that my feature works.
• I have run make gen-changelog to update the changelog. (Manually updated)
• I have run make gen-docs to update the user documentation. (Manually updated)

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