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

dishes/virtual-desktop_43.cfg

@@ -1,4 +1,4 @@
-# Generated by pykickstart v3.66
+# Generated by pykickstart v3.69
 #version=DEVEL
 # Use text mode install
 text
@@ -14,8 +14,6 @@ lang en_US.UTF-8
 network  --bootproto=dhcp --device=link --hostname=phyllome-alpha --activate
 # Shutdown after installation
 shutdown
-repo --name="fedora" --mirrorlist=https://mirrors.fedoraproject.org/mirrorlist?repo=fedora-43&arch=x86_64
-repo --name="updates" --mirrorlist=https://mirrors.fedoraproject.org/mirrorlist?repo=updates-released-f43&arch=x86_64
 #Root password
 rootpw --lock
 # SELinux configuration
@@ -24,8 +22,6 @@ selinux --enforcing
 services --enabled="NetworkManager,systemd-resolved"
 # System timezone
 timezone Europe/Zurich --utc
-# Use network installation
-url --mirrorlist="https://mirrors.fedoraproject.org/mirrorlist?repo=fedora-43&arch=x86_64"
 # X Window System configuration information
 xconfig  --defaultdesktop=GNOME --startxonboot
 # System bootloader configuration
@@ -35,17 +31,9 @@ zerombr
 # Partition clearing information
 clearpart --all --initlabel
 # Disk partitioning information
-part /boot/efi --fstype="efi" --size=512 --fsoptions="umask=0077,shortname=winnt" --label=efi
-part /boot --fstype="ext4" --size=2048 --label=boot
-part / --fstype="ext4" --grow --label=root --mkfsoptions="-O encrypt,fast_commit"
-
-%post --logfile=/mnt/sysimage/root/post.log
-
-localectl set-keymap ch-fr # Set keymap to `ch-fr`. Alternatively, `us` can be picked.
-dnf update -y # Update the system
-grub2-mkconfig -o /boot/grub2/grub.cfg # Unsure it is actually useful
-
-%end
+part /boot/efi --fstype="efi" --size=512 --fsoptions="umask=0077,shortname=winnt" --label="efi"
+part /boot --fstype="ext4" --size=2048 --label="boot"
+part / --fstype="ext4" --grow --label="root" --mkfsoptions="-O encrypt,fast_commit"
 
 %post --nochroot --logfile=/mnt/sysimage/root/base-desktop-gnome.log