Add Cursor Cloud development environment

[gokulkoodathingal]

Summary

Adds a repository-managed Cursor Cloud Agent environment for full Hermes Workspace development.

• .cursor/environment.json — Dockerfile-based image (Node 22 + Python 3), install script, and start script that runs the canonical three-service stack via concurrently
• .cursor/scripts/cloud-install.sh — pnpm install + pip install hermes-agent aiohttp
• .cursor/scripts/cloud-bootstrap-env.sh — idempotent ~/.hermes/.env and workspace .env setup (API server + dev token)
• AGENTS.md — Cursor Cloud operating notes for future agents

Validation

Check	Result
Three-service health (gateway :8642, dashboard :9119, workspace :3000)	Pass
Browser E2E (Dashboard, Memory, Skills, Terminal navigation)	Pass
pnpm build	Pass
pnpm test	708/742 passed (34 pre-existing failures)
Install idempotence	Passed twice
Environment build bld-20260805-9fb0b8ca-86dc-4115-b179-451bf29c3f94	SUCCEEDED

Notes

• Hermes Agent 0.19+ requires API_SERVER_KEY + aiohttp for the gateway HTTP API; bootstrap script sets a loopback dev key mirrored to HERMES_API_TOKEN.
• Chat E2E requires an LLM provider key; UI/navigation/sessions work without one.
• Merge this PR so future environment builds can use the committed .cursor/environment.json on main (promotable builds require default branch).