refactor: rename fragments directory to ingredients and update all references

- Directory rename: fragments/ → ingredients/ (54 .ks files)
- Updated all Python scripts:
  * tests/integration/conftest.py - fixture renames
  * tests/integration/test_integration.py - constant and path updates
  * tests/test_recipe_generator.py - updated test assertions
  * recipe-generator/validators.py - updated comments and error messages
  * recipe-generator/recipe_generator.py - updated comment
- Updated all YAML files:
  * recipe-generator/recipe_templates.yaml - 66 path references
  * .gitea/workflows/validate-fragments.yaml → validate-ingredients.yaml
  * .gitea/workflows/test-generation.yaml - path patterns
- Updated scripts:
  * bin/ksflatten-relative - updated path detection
- Updated test file:
  * tests/integration/test_fragments.py → test_ingredients.py
- Updated documentation:
  * DEVELOPMENT.md - simplified references
  * DEVELOPMENT_QUICK.md - updated examples
  * tests/container/README.md - test references
- Regenerated all recipes (16 files) with ingredient paths
- Updated test fixtures (7 files)
- All integration tests pass (5/5)
- All unit tests pass (29/31 - 2 pre-existing failures unrelated)

ingredients/storage/encrypted.ks

@@ -0,0 +1,8 @@
+# Encrypted storage configuration
+
+zerombr # Destroy all the contents of disks with invalid partition tables or other formatting unrecognizable to the installer
+clearpart --all --initlabel # Erase all partitions and Initializes the disk label to the default for the target architecture
+
+part /boot/efi --fstype="efi" --size=512 --fsoptions="umask=0077,shortname=winnt" --label=efi # Creates a 512 MiB EFI system partition
+part /boot --fstype="ext4" --size=2048 --label=boot # Creates a 2048 MiB ext4 boot partition
+part / --fstype="ext4" --grow --label=root --mkfsoptions="-O encrypt,fast_commit" --encrypted --passphrase= # Create a single encrypted root partition with the remaining space.

ingredients/storage/standard.ks

@@ -0,0 +1,8 @@
+# Standard storage configuration
+
+zerombr # Destroy all the contents of disks with invalid partition tables or other formatting unrecognizable to the installer
+clearpart --all --initlabel # Erase all partitions and Initializes the disk label to the default for the target architecture
+
+part /boot/efi --fstype="efi" --size=512 --fsoptions="umask=0077,shortname=winnt" --label=efi # Creates a 512 MiB EFI system partition
+part /boot --fstype="ext4" --size=2048 --label=boot # Creates a 2048 MiB ext4 boot partition
+part / --fstype="ext4" --grow --label=root --mkfsoptions="-O encrypt,fast_commit" # Create a single root partition with the remaining space