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, 31 deletions

diff --git a/scripts/testing/finalize-base-vm.sh b/scripts/testing/finalize-base-vm.sh
deleted file mode 100755
index 225ffae..0000000
--- a/scripts/testing/finalize-base-vm.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-# Finalize base VM after installation
-VM_NAME="archsetup-base"
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
-BASE_DISK="$PROJECT_ROOT/vm-images/archsetup-base.qcow2"
-
-echo "[i] Removing ISO from VM..."
-virsh --connect qemu:///system change-media $VM_NAME sda --eject 2>/dev/null || true
-virsh --connect qemu:///system change-media $VM_NAME hda --eject 2>/dev/null || true
-echo "[✓] ISO removed"
-
-echo "[i] Fixing base disk permissions..."
-sudo chown $USER:$USER "$BASE_DISK"
-sudo chmod 644 "$BASE_DISK"
-echo "[✓] Permissions fixed"
-
-echo "[i] Starting VM from installed system..."
-virsh --connect qemu:///system start $VM_NAME
-echo "[i] Waiting for boot..."
-sleep 30
-IP=$(virsh --connect qemu:///system domifaddr $VM_NAME 2>/dev/null | grep -oP '(\d+\.){3}\d+' | head -1)
-echo "[✓] Base VM is ready!"
-echo ""
-echo "Connect via:"
-echo "  Console: virsh console $VM_NAME"
-echo "  SSH:     ssh root@$IP"
-echo "  Password: archsetup"
-echo ""
-echo "To create a test clone:"
-echo "  ./scripts/testing/run-test.sh"