Run Studio locally and build tests with agents

Studio now runs on your own machine next to your code, and a coding agent can write and test a procedure with nothing but the CLI.

• Added tofupilot studio: it opens Studio in your browser from the project folder, with the sequence tree, the phase inspector, live runs with operator prompts and the plug debugger. Nothing goes through the dashboard, and you edit your code in your own editor.
• Added commands for coding agents: tofupilot init creates a project that runs on the first try, tofupilot docs gives the documentation offline for your CLI version, and tofupilot agents-md writes the rules an agent needs into AGENTS.md.
• Added tofupilot schema and tofupilot doctor to check a procedure file and the Python environment, and a warning when two parallel phases share an instrument or an operator screen.
• Improved errors: every JSON error says what to do next, tofupilot deploy lists every problem at once, and an operator prompt nobody answers no longer blocks an agent.
• Removed the Studio assistant and code editor from the dashboard: tofupilot studio replaces them.