refactor: Simplify template logic - reduce from 6 to 3 categories, remove variant_type, keep validation, remove tests

Simplified template logic: reduced from 6 categories (required, modifiers, optional, versioned, conditional, flags) to 3 categories (required, modifiers, optional). Removed variant_type and replaced with modifier-based approach (version, bootloader replaced, hardware_support). All validation methods kept for recipe generation and validation. Removed tests directory (tests/test_recipe_generator.py, tests/integration/, tests/container/). Removed non-ISO workflows (validate-recipes, test-generation, container-tests, validate-ingredients). Updated Makefile, requirements.txt, and documentation. All 20 recipes successfully generated, validated, and flattened.

DEVELOPMENT_QUICK.md

@@ -7,10 +7,10 @@ This is a quick-reference guide for developers. For comprehensive coverage, see
 ```bash
 # Prerequisites
 sudo dnf install qemu libvirt virt-install pykickstart
-pip install PyYAML pytest
+pip install PyYAML
 
 # Verify setup
-cd recipe-generator && make generate-recipes && make test
+cd recipe-generator && make generate-recipes 
 ```
 
 ## Core Workflows
@@ -35,13 +35,6 @@ new-package
 cd recipe-generator && make generate-recipes && make validate-recipes
 ```
 
-### Run Tests
-
-```bash
-cd recipe-generator
-make test                    # All tests
-make test-integration        # Integration only
-make test-container          # Containerized
 ```
 
 ### Validate Fragments