alliance

NestJS endpoint return-type and DTO rules — explicit DTO return types, @ApiOkResponse matching, wrapper DTOs, constructor patterns, and the post-edit `bun run gen-api` step. Read before editing any *.dto.ts or *.controller.ts in server/.

Query the local Postgres database — credentials via server/.env, psql one-liners, TypeORM table/column naming, dev vs test DB.

Generate and review TypeORM database migrations in server/ — migration:generate vs migration:create, and the column-rename DROP+ADD pitfall. Read before generating or writing any db migration.

Verify changes against the locally running apps — curl the API, drive the admin/frontend GUIs with Playwright