Initialize development environment for git worktree
sonnet# Setup Development Environment <objective> Get the development environment ready for productive work with context-aware setup that adapts to git worktrees vs new machines. </objective> <context-awareness> Detect whether this is a git worktree or new machine setup: - Current path within .gitworktrees/? → worktree setup - node_modules already exists in main repo? → worktree setup - Neither? → new machine setup For worktrees: Minimal setup (install dependencies, copy environment files, smoke test). For new machines: Full setup (install and verify dependencies, set up git hooks, run build, ...