Simulation: Naive control participant

Behavior: writes basic structure themselves, uses AI for small pieces only.

Produces: partial routes, DB calls in handlers, no tests, happy-path only.

Create a basic Express server in src/index.ts on port 3000 with a SQLite database using better-sqlite3. Create the users table with id, name, email, token columns.

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Now add a POST /api/users route. It takes { name, email }, creates the user, returns the user with a token. The token can just be a random uuid. Keep it in the same file for now.

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Add a users table and a tandas table to the database. Tandas have id, name, organizerId, status (forming/active/completed/cancelled), contributionAmount, totalRounds, currentRound.

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Add these routes to src/index.ts:

• POST /api/tandas — create a tanda, creator becomes the organizer
• GET /api/tandas/:id — get a tanda

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Add a participants table that links users to tandas. Then add:

• POST /api/tandas/:id/join — add the user to the tanda (pass userId in body)
• GET /api/tandas/:id/participants — list the participants

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Add POST /api/tandas/:id/start — change status to active. Add POST /api/tandas/:id/cancel — change status to cancelled.

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The server should start and the basic routes should work. Don’t add tests.