pub fn root_from_env() -> Option<String>Expand description
Detect project root from IDE-specific environment variables.
Priority (first match wins): LEAN_CTX_PROJECT_ROOT — explicit override (user/CI) CURSOR_PROJECT_DIR — Cursor ≥ 3.7 CLAUDE_PROJECT_DIR — Claude Code WINDSURF_PROJECT_DIR — Windsurf (Codeium) TRAE_PROJECT_DIR — Trae (ByteDance) KIRO_PROJECT_DIR — AWS Kiro CODEX_SANDBOX_DIR — Codex desktop sandbox GIT_WORK_TREE — git worktree env