feat: Phase 2 (fragment migration), Phase 3 (testing infrastructure), Phase 4 (CI/CD)

Phase 2: Fragment Migration
- Migrated 42 ingredients to 54 fine-grained fragments
- Replaced %include with %ksappend syntax
- Created organized fragment structure (platform/generic-43, platform/generic-rawhide, shared/)
- Updated generator to use fragment paths
- All 16 manifest variants generate successfully

Phase 3: Testing Infrastructure
- Created containerized test runner (tests/container/)
- Added integration test suite (tests/integration/)
- Created golden master fixtures (tests/fixtures/expected_recipes/)
- 41 tests passing (36 unit + 5 integration)
- 54 fragments, 16 recipes validated

Phase 4: CI/CD Integration
- 5 new workflows: validate-recipes, validate-fragments, test-generation, container-tests, build-iso
- Added validation gates before ISO builds
- Works with existing fedora-runner-image
- Local testing support via act_runner

scripts/Makefile

@@ -1,4 +1,4 @@
-.PHONY: help generate-recipes validate-recipes test clean install-deps
+.PHONY: help generate-recipes validate-recipes test test-integration test-container clean install-deps
 
 help:
 	@echo "Phyllome OS Recipe Generator"
@@ -6,7 +6,9 @@ help:
 	@echo "Available targets:"
 	@echo "  generate-recipes  - Generate all recipes from manifest"
 	@echo "  validate-recipes  - Validate existing recipes"
-	@echo "  test              - Run pytest test suite"
+	@echo "  test              - Run pytest test suite (unit + integration)"
+	@echo "  test-integration  - Run integration tests only"
+	@echo "  test-container    - Run all tests in container"
 	@echo "  clean             - Remove generated recipes"
 	@echo "  install-deps      - Install Python dependencies"
 
@@ -23,7 +25,14 @@ validate-recipes:
 		--validate ../recipes/*.cfg
 
 test:
-	pytest ../tests/test_recipe_generator.py -v
+	python3 -m pytest tests/ -v --tb=short
+
+test-integration:
+	python3 -m pytest tests/integration/ -v --tb=short
+
+test-container:
+	podman build -t phyllo/test-runner tests/container/
+	podman run --rm -v .:/phyllomeos:ro phyllo/test-runner
 
 clean:
 	rm -f ../recipes/*.cfg