Add AGENTS.md with Cursor Cloud dev environment setup notes

[dgreif]

Summary

Sets up and verifies the development environment for this monorepo, and adds an AGENTS.md documenting durable, non-obvious setup notes for future Cloud Agents.

The only committed change is the new AGENTS.md. No application code was modified.

What was verified

• npm ci — installs all workspace deps.
• npm run build — all 3 packages build (turbo).
• npm run lint — clean across all packages.
• npm test — 18/18 vitest tests pass (ring-client-api, mocked Ring servers via msw).
• npm run dev — Homebridge boots, loads homebridge-ring@14.3.0 from TypeScript source, registers/initializes the Ring platform, and publishes a pairable HomeKit bridge.

Key gotcha captured in AGENTS.md

npm run dev / example scripts / CLIs rely on Node's native TypeScript type-stripping, which requires Node >= 22.18 (or >= 24). The base node on PATH is an older 22.x that fails with Unknown file extension ".ts". The environment now uses an nvm-managed newer node (default 24) via a ~/.bashrc prepend so login/tmux shells work out of the box; build/lint/test work on any supported node.

  

[changeset-bot]

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Latest commit: 6392f9b

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