REFACTORED - migrate the data layer from Prisma to Drizzle (unify the stack)

- Add lib/db (Drizzle schema: 7 tables + 6 enums + relations, postgres.js client),
  drizzle.config.ts, lib/db/enums.ts (Prisma-compatible enum objects)
- Rewrite all 14 app consumers + 4 admin components to Drizzle
- Move the test DB layer to Drizzle + in-process PGlite; convert all 8 integration
  test files + factories (371 tests green)
- Remove Prisma: deps, prisma/ schema+migrations, lib/prisma.ts, Dockerfile prisma
  generate; wire db:generate/migrate/push/studio to drizzle-kit; update Makefile
- Preserve the old seed as scripts/legacy-prisma-seed.cjs (needs a Drizzle rewrite)

Makefile

@@ -1,4 +1,4 @@
-.PHONY: start stop restart deploy logs build ps port health clean-orphans app-shell db-shell db-init db-migrate db-seed prisma-generate prisma-migrate test test-watch help
+.PHONY: start stop restart deploy logs build ps port health clean-orphans app-shell db-shell db-init db-migrate db-generate test test-watch help
 
 MIGRATION_NAME ?= init
 
@@ -38,13 +38,10 @@ db-shell:
 	docker compose exec db psql -U postgres -d moh_sass
 
 db-init:
-	docker compose exec app sh -lc "npx prisma generate && npx prisma migrate deploy && npx prisma db seed"
+	docker compose exec app npm run db:migrate
 
 db-migrate:
-	docker compose exec app npx prisma migrate deploy
-
-db-seed:
-	docker compose exec app npx prisma db seed
+	docker compose exec app npm run db:migrate
 
 test:
 	@node scripts/test-summary.mjs
@@ -52,11 +49,8 @@ test:
 test-watch:
 	npm run test:watch
 
-prisma-generate:
-	docker compose exec app npx prisma generate
-
-prisma-migrate:
-	docker compose exec app npx prisma migrate dev --name $(MIGRATION_NAME)
+db-generate:
+	docker compose exec app npm run db:generate
 
 health:
 	curl -sS https://mohfarawati.de/api/health
@@ -74,11 +68,9 @@ help:
 	@echo "  make clean-orphans    Remove orphaned old containers"
 	@echo "  make app-shell        Open shell in app container"
 	@echo "  make db-shell         Open PostgreSQL shell"
-	@echo "  make db-init          Generate client, apply migrations, run seed"
-	@echo "  make db-migrate       Apply prisma migrations"
-	@echo "  make db-seed          Seed database data"
-	@echo "  make prisma-generate  Run prisma generate"
-	@echo "  make prisma-migrate   Create/apply dev migration"
+	@echo "  make db-init          Apply Drizzle migrations to the DB"
+	@echo "  make db-migrate       Apply Drizzle migrations (drizzle-kit migrate)"
+	@echo "  make db-generate      Generate a migration from schema changes (drizzle-kit generate)"
 	@echo "  make health           Check app health endpoint via public domain"
 	@echo "  make test             Run the whole test suite + print a copy-paste summary"
 	@echo "  make test-watch       Run the test suite in watch mode"