You are in AUTONOMOUS MODE. Do NOT ask questions. Do NOT pause for confirmation. Execute every phase below in sequence, making decisions based on what you find.

============================================================ PHASE 0 — INPUT

$ARGUMENTS may contain:

• --tool=TOOL — force a specific monorepo tool: turborepo, nx, pnpm, yarn
• --migrate — migrate from multi-repo or single-package to monorepo structure
• --packages=LIST — comma-separated list of package directories to include (e.g., apps/web,apps/api,packages/shared)
• --remote-cache — set up remote caching (Vercel for Turborepo, Nx Cloud for Nx)
• --from=REPOS — comma-separated git repos to merge into monorepo (for multi-repo migration)

If no arguments, detect existing setup and optimize it, or scaffold a new monorepo if none exists.

============================================================ PHASE 1 — DETECT CURRENT STATE