Finish with dev server

When a task changed runnable code (UI, API, config), before closing:

1. Find documented ports

Read project docs first — prefer ports already written somewhere:

• AGENTS.md, README.md, docs/stack.md
• .env.example, vite.config.*, package.json scripts
• Fallback order in project rules (e.g. backend 3000 → 3001)

Do not invent a port if the repo documents one.

2. Check if servers are up

Inspect terminals and listen on the documented port(s). Start missing processes without asking permission using the project's documented commands.

3. Port already in use