docs: add Cursor Cloud setup notes to AGENTS.md

[samanyugoyal2010]

Summary

Sets up the Cloud Agent development environment for this codebase and records the durable, non-obvious learnings for future agents. No application code changed — this only adds a ## Cursor Cloud specific instructions section to AGENTS.md (and the auto-generated agent-rule mirrors via scripts/sync-agent-rules.sh).

Environment setup performed

• Installed Node 24 via nvm (the project requires node >=24; the VM's baked-in /exec-daemon/node is v22 and wins PATH resolution, so ~/.bashrc now prepends the nvm bin dir).
• npm ci to install dependencies (registered as the startup update script).
• No .env.local/secrets needed — the site is local-first and runs fully without Clerk/Supabase/Resend.

Verification (all green on Node 24)

Check	Command	Result
Lint	npm run lint	pass
Typecheck	npm run typecheck	pass
Lesson graph	npm run learn:check	pass (189 published chapters)
Build	npm run build	pass
Dev server	npm run dev	serves on :3000

Hello-world task

Ran the dev server and drove the browser through the core flow: homepage → ML track index → the "What Is Machine Learning?" lesson, then interacted with the hero interactive (dragging the rules slider / clicking rule buttons). The scatter-plot visualization and the accuracy/precision metrics updated in real time in response to input.

cwp_interactive_lesson_demo.mp4

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Project	Deployment	Actions	Updated (UTC)
new-cwp	Ready	Preview	Aug 22, 2026 6:04am