Homebrew path and tap exploration

Nested lingtai-update reference. The supported formula is lingtai-ai/lingtai/lingtai-tui. brew install still works for a first install, but /update-tui, lingtai-tui self-update, and lingtai-tui doctor no longer run brew upgrade against it — a detected Homebrew install now migrates (with explicit consent) to LingTai's native installer instead; see the update-tui reference. The commands below remain useful for manual exploration of an existing Homebrew install. The migration step itself never touches the old formula/keg; removing it is a separate, interactive-only consent step (the startup "Remove the old Homebrew installation now? y/N]" prompt, see update-tui) — self-update and doctor never run brew uninstall and only report the manual command:

bash
brew install lingtai-ai/lingtai/lingtai-tui
brew update
brew upgrade lingtai-ai/lingtai/lingtai-tui
brew info lingtai-ai/lingtai/lingtai-tui
brew --repository

The release workflow writes Lingtai-AI/homebrew-lingtai/lingtai-tui.rb from the tagged source tarball, builds tui and portal, and runs the TUI version smoke test. To inspect the installed formula and its origin, pair brew info above with brew cat lingtai-ai/lingtai/lingtai-tui; brew --repository locates the checkout, so inspect the reported tap directory. Treat manual tap edits as debugging only; release automation owns normal formula updates.

The formula builds Go and the embedded portal frontend and runs its own connectivity probes. The mainland reference owns the HOMEBREW_* proxy and registry overrides and their non-guaranteed mirror behavior.