Task 003: add postgres schema and seed data

Makefile

@@ -1,6 +1,6 @@
 PYTHON ?= python3
 
-.PHONY: contracts dev down smoke
+.PHONY: contracts dev down migrate seed smoke
 
 contracts:
 	$(PYTHON) scripts/generate_openapi_contracts.py
@@ -11,5 +11,11 @@ dev:
 down:
 	docker compose down --remove-orphans
 
+migrate:
+	alembic upgrade head
+
+seed:
+	PYTHONPATH=apps/backend $(PYTHON) -m src.infrastructure.seed_data
+
 smoke:
 	bash tests/smoke/public-health.sh