Set up Cursor Cloud development environment

[dani-polani]

Summary

Sets up the development environment for the Word Aligner SvelteKit app (lives in bitext/) and verifies it end-to-end.

• Configured the startup update script to npm --prefix bitext ci.
• Added a ## Cursor Cloud specific instructions section to AGENTS.md capturing the non-obvious facts: the app lives in the bitext/ subdirectory, no secrets are needed for dev/test/build/run, and how to start the dev server + verify the core flow.

Verification

All checks run from bitext/:

• npm run lint — Prettier + ESLint pass
• npm test — 62 tests pass (7 files)
• npm run build — production build succeeds
• npm run dev — dev server serves HTTP 200 on port 5173
• POST /api/align — returns a shareable ?data= URL

Hello-world task

Loaded the app, then linked words across two lines ("Hello"↔"Bonjour", "world"↔"monde") and confirmed curved connectors are drawn.

word_aligner_linking_demo.mp4

Word Aligner with connectors drawn between aligned words

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