feat/metadata-schema-validation (#165)

Reviewed-on: #165

Makefile

@@ -11,7 +11,7 @@ DISTRO ?= almalinux/el9
 PACKAGES := $(shell find $(ROOT_DIR)/rpms -mindepth 1 -maxdepth 1 -type d -exec test -f {}/metadata.yaml \; -print | xargs -n1 basename | sort)
 
 # Default target to build all packages
-.PHONY: all list build clean
+.PHONY: all list build clean test
 all: build-all
 
 # List all available packages
@@ -47,6 +47,10 @@ dry-run:
 	@echo "Dry run - showing what would be built for distro $(DISTRO):"
 	$(BUILD_TOOL) build-all --distro $(DISTRO) --dry-run
 
+# Run unit tests
+test:
+	@uv run --group dev pytest tests/ -q; rc=$$?; [ $$rc -eq 5 ] && exit 0 || exit $$rc
+
 # Clean target
 clean:
 	@echo "Cleaning build artifacts..."