implemented

Makefile

@@ -1,4 +1,4 @@
-.PHONY: install-backend install-frontend install backend frontend db db-stop db-ready db-seed dev test test-backend test-frontend test-e2e typecheck
+.PHONY: install-backend install-frontend install backend frontend db db-stop db-ready db-seed dev test test-backend test-frontend test-e2e typecheck generate-types generate-types-standalone check-types-fresh check-constants
 
 -include .env
 export
@@ -54,7 +54,33 @@ test-frontend:
 test-e2e: db-clean db-ready
 	./scripts/e2e.sh
 
-test: test-backend test-frontend test-e2e
+test: check-constants check-types-fresh test-backend test-frontend test-e2e
 
-typecheck:
+typecheck: generate-types-standalone
 	cd backend && uv run mypy .
+	cd frontend && npx tsc --noEmit
+
+generate-types:
+	cd frontend && npm run generate-api-types
+
+generate-types-standalone: db-seed
+	@echo "Starting backend for type generation..."
+	@cd backend && uv run uvicorn main:app --port 8000 --log-level warning & \
+	BACKEND_PID=$$!; \
+	sleep 3; \
+	cd frontend && npm run generate-api-types; \
+	EXIT_CODE=$$?; \
+	kill $$BACKEND_PID 2>/dev/null || true; \
+	exit $$EXIT_CODE
+
+check-types-fresh: generate-types-standalone
+	@if git diff --quiet frontend/app/generated/api.ts 2>/dev/null; then \
+		echo "✓ Generated types are up to date"; \
+	else \
+		echo "✗ Generated types are stale. Run 'make generate-types-standalone' and commit."; \
+		git diff frontend/app/generated/api.ts; \
+		exit 1; \
+	fi
+
+check-constants:
+	@cd backend && uv run python validate_constants.py