* docs: add Node LTS pinning guide for macOS Homebrew users
New doc (docs/node-lts-macos.md) explains how to pin Node 24 LTS
via Homebrew to avoid running on odd-numbered development releases.
Covers brew install/link/pin, version managers as alternatives,
and verification steps.
Added notice banner in README linking to the guide.
* fix: improve LSP diagnostics when no servers detected (#1082)
When lsp status returns 'No language servers configured', the output
now includes diagnostics:
- Which project markers were detected (e.g. package.json found)
- Which server commands are missing (e.g. typescript-language-server)
- Install instructions
Also added LSP troubleshooting section to docs/troubleshooting.md
with common install commands per language.
Adds git.isolation: "none" so developers can use GSD's full planning/execution
methodology with all work happening directly on their current branch — no worktree,
no milestone branch, no merge step.
- Preference plumbing: "none" accepted/validated, getIsolationMode() helper
- Core bypass: all worktree/branch gates in auto.ts skip in none mode
- Peripheral: doctor skips worktree checks, system prompt omits worktree context
- Docs: git-strategy, configuration, auto-mode, troubleshooting, system prompt updated
- Tests: 11 new tests, 621/621 pass
