Fix space in Makefile

Author: haad

Makefile

@@ -62,8 +62,9 @@ help:
 	@echo "  lint       - Run golangci-lint to check code quality"
 	@echo "  check      - Run all checks (fmt-check + lint)"
 	@echo "  test       - Run end-to-end tests (requires additional setup)"
-	@echo "  pr-tests - Run comprehensive tests for PR submission"
+	@echo "  pr-tests   - Run comprehensive tests for PR submission"
 	@echo "  clean      - Remove build artifacts and temporary files"
+	@echo "  vet        - Run go vet to check code quality"
 	@echo "  help       - Show this help message"
 	@echo ""
 	@echo "Common workflows:"