feat(testing): rewrite test infrastructure from libvirt to direct QEMU

Replace the never-fully-operational libvirt-based VM test infrastructure
with direct QEMU management and archangel ISO for fully automated,
unattended base VM creation.

Key changes:
- vm-utils.sh: complete rewrite — QEMU process mgmt via PID file,
  monitor socket for graceful shutdown, qemu-img snapshots, SSH
  port forwarding (localhost:2222)
- create-base-vm.sh: boots archangel ISO, SSHs in, runs unattended
  install via config file, verifies, creates clean-install snapshot
- run-test.sh: snapshot revert, git bundle transfer, detached archsetup
  execution with setsid, polling, validation, and report generation
- debug-vm.sh: CoW overlay disk, GTK display, auto-cleanup on close
- setup-testing-env.sh: reduced deps to qemu-full/sshpass/edk2-ovmf/socat
- cleanup-tests.sh: PID-based process management, orphan detection
- validation.sh: port-based SSH (backward compatible), fuzzel/foot for
  Hyprland, corrected package list paths
- network-diagnostics.sh: getent/curl instead of nslookup/ping (SLIRP)

New files:
- archsetup-test.conf: archangel config for base VM (btrfs, no encrypt)
- archsetup-vm.conf: archsetup config for unattended test execution
- assets/archangel.conf.example: reference archangel config

Deleted:
- finalize-base-vm.sh: merged into create-base-vm.sh
- archinstall-config.json: replaced by archangel .conf format

Tested: full end-to-end run — 51 validations passed, 0 failures.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 0 insertions, 117 deletions

diff --git a/scripts/testing/archinstall-config.json b/scripts/testing/archinstall-config.json
deleted file mode 100644
index a55e2a1..0000000
--- a/scripts/testing/archinstall-config.json
+++ /dev/null
@@ -1,117 +0,0 @@
-{
-    "!users": {
-        "0": {
-            "!password": "archsetup",
-            "username": "root",
-            "sudo": false
-        }
-    },
-    "archinstall-language": "English",
-    "audio_config": null,
-    "bootloader": "systemd-bootctl",
-    "config_version": "2.8.0",
-    "debug": false,
-    "disk_config": {
-        "config_type": "default_layout",
-        "device_modifications": [
-            {
-                "device": "/dev/vda",
-                "partitions": [
-                    {
-                        "btrfs": [],
-                        "flags": [
-                            "Boot"
-                        ],
-                        "fs_type": "fat32",
-                        "length": {
-                            "sector_size": null,
-                            "total_size": null,
-                            "unit": "MiB",
-                            "value": 512
-                        },
-                        "mount_options": [],
-                        "mountpoint": "/boot",
-                        "obj_id": "boot_partition",
-                        "start": {
-                            "sector_size": null,
-                            "total_size": null,
-                            "unit": "MiB",
-                            "value": 1
-                        },
-                        "status": "create",
-                        "type": "primary"
-                    },
-                    {
-                        "btrfs": [],
-                        "flags": [],
-                        "fs_type": "ext4",
-                        "length": {
-                            "sector_size": null,
-                            "total_size": null,
-                            "unit": "MiB",
-                            "value": 100
-                        },
-                        "mount_options": [],
-                        "mountpoint": "/",
-                        "obj_id": "root_partition",
-                        "start": {
-                            "sector_size": null,
-                            "total_size": null,
-                            "unit": "MiB",
-                            "value": 513
-                        },
-                        "status": "create",
-                        "type": "primary"
-                    }
-                ],
-                "wipe": true
-            }
-        ]
-    },
-    "disk_encryption": null,
-    "hostname": "archsetup-test",
-    "kernels": [
-        "linux"
-    ],
-    "locale_config": {
-        "kb_layout": "us",
-        "sys_enc": "UTF-8",
-        "sys_lang": "en_US"
-    },
-    "mirror_config": {
-        "custom_mirrors": [],
-        "mirror_regions": {
-            "United States": [
-                "https://mirror.rackspace.com/archlinux/$repo/os/$arch",
-                "https://mirror.leaseweb.com/archlinux/$repo/os/$arch"
-            ]
-        }
-    },
-    "network_config": {
-        "type": "nm"
-    },
-    "no_pkg_lookups": false,
-    "ntp": true,
-    "offline": false,
-    "packages": [
-        "openssh",
-        "dhcpcd",
-        "git",
-        "vim"
-    ],
-    "parallel downloads": 5,
-    "profile_config": {
-        "gfx_driver": "All open-source",
-        "greeter": null,
-        "profile": {
-            "custom_settings": {},
-            "details": [],
-            "main": "Minimal"
-        }
-    },
-    "script": "guided",
-    "silent": false,
-    "swap": false,
-    "timezone": "America/Chicago",
-    "version": "2.8.0"
-}