Prisma Migration Structure

This project uses Prisma as the default data access layer.

Migration policy:

Create schema changes with pnpm prisma:migrate:dev --name <change-name> after the final MySQL connection details are confirmed.
Commit generated folders under prisma/migrations/<timestamp>_<change-name>/migration.sql.
Run migration checks in deployment before starting the API.
Keep raw SQL exceptional. If native SQL is required for performance or vendor-specific behavior, place it behind a Repository method and document why Prisma Client is not sufficient.

The first-stage schema is defined in prisma/schema.prisma; no live migration is executed until a local or staging MySQL database is explicitly provided.