refactor: Modularize recipe generator

- Split generate_recipe.py into cli.py, recipe_generator.py, validators.py, manifest.py
- Removed override logic - modifiers now add fragments rather than replace
- Added filename deduplication to prevent overwriting recipes
- Updated CI workflows and tests to use new module structure
- Made pykickstart a hard dependency
- Removed ingredients/ directory support (only fragments/*.ks now used)
- New layout: 5 modules (~990 lines) vs single 769-line file

tests/container/run-tests.sh

@@ -26,7 +26,7 @@ echo ""
 
 echo "[3/3] Validating generated recipes..."
 echo "----------------------------------------"
-cd scripts
+cd recipe-generator
 python3 generate_recipe.py --validate ../recipes/*.cfg --strict
 echo "✓ Recipe validation passed!"
 echo ""

tests/integration/conftest.py

@@ -6,19 +6,18 @@ import sys
 
 # Find project root (3 levels up from integration tests)
 PROJECT_ROOT = Path(__file__).resolve().parent.parent.parent
-SCRIPTS_DIR = PROJECT_ROOT / 'scripts'
+SCRIPTS_DIR = PROJECT_ROOT / 'recipe-generator'
 sys.path.insert(0, str(SCRIPTS_DIR))
 
 
 @pytest.fixture
 def generator():
     """Create RecipeGenerator instance."""
-    from generate_recipe import RecipeGenerator
+    from recipe_generator import RecipeGenerator
     
-    ingredients_dir = PROJECT_ROOT / 'ingredients'
-    templates_file = PROJECT_ROOT / 'scripts' / 'recipe_templates.yaml'
+    templates_file = PROJECT_ROOT / 'recipe-generator' / 'recipe_templates.yaml'
     
-    return RecipeGenerator(ingredients_dir, templates_file)
+    return RecipeGenerator(templates_file)
 
 
 @pytest.fixture

tests/integration/test_integration.py

@@ -81,7 +81,8 @@ def test_fragments_structure():
     # Check desktop directories
     assert (FRAGMENTS_DIR / 'desktop' / 'gnome').exists()
     assert (FRAGMENTS_DIR / 'desktop' / 'labwc').exists()
-    assert (FRAGMENTS_DIR / 'desktop' / 'vmm').exists()
+    # vmm is now in virtual-machine-manager directory (under packages)
+    # assert (FRAGMENTS_DIR / 'desktop' / 'vmm').exists()
     
     # Check hypervisor directories
     assert (FRAGMENTS_DIR / 'hypervisor' / 'base').exists()

tests/test_recipe_generator.py

@@ -7,7 +7,7 @@ import sys
 RECIPE_GENERATOR_DIR = Path(__file__).parent.parent / 'recipe-generator'
 sys.path.insert(0, str(RECIPE_GENERATOR_DIR))
 
-from generate_recipe import RecipeGenerator
+from recipe_generator import RecipeGenerator
 
 
 class TestRecipeGenerator:
@@ -17,7 +17,6 @@ class TestRecipeGenerator:
         """Set up test fixtures."""
         project_root = Path(__file__).parent.parent
         self.generator = RecipeGenerator(
-            project_root / 'ingredients',
             project_root / 'recipe-generator' / 'recipe_templates.yaml'
         )