* docs: add Homebrew installation instructions
Add Homebrew as an installation option for macOS/Linux users in both
English and Chinese READMEs.
Closes#130
* feat(cli): detect Homebrew installs and use brew upgrade for updates
When kimi-code is installed via Homebrew, the update system now detects
the installation source and uses 'brew upgrade kimi-code' instead of
falling back to 'npm install -g'. This prevents duplicate installations
when Homebrew users receive update prompts.
* chore: add changeset for Homebrew update detection
* fix(cli): tighten Homebrew detection and disable auto-update
- Only match /cellar/ path segment (not /homebrew/) to avoid false
positives on Apple Silicon where npm global installs live under
/opt/homebrew/lib/node_modules/
- Disable background auto-update for Homebrew: brew upgrade may mutate
dependents silently and the formula can lag behind CDN releases
* fix(cli): add homebrew to InstallSource Zod schema
Keeps the persistence schema in sync with the TypeScript type. Currently
harmless since Homebrew auto-install is disabled, but prevents a silent
state reset if it is ever enabled later.
---------
Co-authored-by: liruifengv <liruifeng1024@gmail.com>