rewrite builder pattern + clean script as template

packages/system/virt/tests/rhai/vm_clean_launch.rhai

@@ -0,0 +1,82 @@
+// Clean VM Launch Script
+// Creates a VM using builder pattern with concise output
+
+let vm_id = "vm-clean-test";
+
+// Phase 1: Host check
+print("Checking system requirements...");
+let hc = host_check();
+if !(hc.ok == true) {
+    print("❌ System check failed - missing dependencies:");
+    if hc.critical != () && hc.critical.len() > 0 {
+        print("Critical:");
+        for dep in hc.critical {
+            print("  - " + dep);
+        }
+    }
+    if hc.optional != () && hc.optional.len() > 0 {
+        print("Optional:");
+        for dep in hc.optional {
+            print("  - " + dep);
+        }
+    }
+    throw "Host check failed: missing dependencies";
+}
+print("✅ System requirements met");
+
+// Phase 2: Create VM using fluent builder pattern
+print("Preparing Ubuntu image and configuring VM...");
+let vm_id_actual = "";
+try {
+    vm_id_actual = cloudhv_builder(vm_id)
+        .disk_from_flavor("ubuntu")
+        .network_default_nat()
+        .memory_mb(4096)
+        .vcpus(2)
+        .launch();
+} catch (e) {
+    throw "VM launch failed: " + e.to_string();
+}
+
+// Phase 3: Wait for VM to boot and get network configuration
+print("✅ VM launched successfully");
+print("⏳ Waiting 10 seconds for VM to boot and configure network...");
+sleep(10); 
+
+// Phase 4: Discover VM IP addresses
+print("🔍 Discovering VM network addresses...");
+let mac_addr = "a2:26:1e:ac:96:3a"; // This should be derived from vm_id_actual
+let ipv4 = cloudhv_discover_ipv4_from_leases("/var/lib/misc/dnsmasq-hero-br-hero.leases", mac_addr, 30);
+let ipv6 = cloudhv_discover_ipv6_on_bridge("br-hero", mac_addr);
+
+// Phase 5: Display connection info
+print("✅ VM " + vm_id_actual + " is ready!");
+print("");
+print("🌐 Network Information:");
+if ipv4 != () && ipv4 != "" {
+    print("   IPv4: " + ipv4);
+} else {
+    print("   IPv4: Not assigned yet (VM may still be configuring)");
+}
+if ipv6 != () && ipv6 != "" {
+    print("   IPv6: " + ipv6);
+} else {
+    print("   IPv6: Not available");
+}
+print("");
+print("💡 VM is running in the background. To connect:");
+print("   SSH: ssh ubuntu@" + (if ipv4 != () && ipv4 != "" { ipv4 } else { "<IPv4>" }));
+print("");
+print("🛑 To stop the VM later:");
+print("   cloudhv_vm_stop(\"" + vm_id_actual + "\", false);");
+print("   cloudhv_vm_delete(\"" + vm_id_actual + "\", true);");
+
+/*
+try {
+    cloudhv_vm_stop(vm_id_actual, false);
+    cloudhv_vm_delete(vm_id_actual, true);
+    print("VM stopped and cleaned up.");
+} catch (e) {
+    print("Warning: cleanup failed: " + e.to_string());
+}
+*/