fix(vm-setup): wait 50 min for a new machine's first boot

On 27.10.2026 a new machine's first boot took 30 min: Lima copies every
`mode: data` file with `sudo -iu root`, and while cloud-final runs logind
cannot open the session, so pam_systemd times out after 2 min per file.
`limactl start` gave up after its default 10 min and vm-setup failed on a
new Mac or a restore. Later boots take ~12 s.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AU1MhxJW1e9oTB2XvjX8WT

Author: mbeczynski

mac-app/Sources/CloudMachineCore/VMSetup.swift

@@ -58,10 +58,14 @@ public enum VMSetup {
         return fail(L10n.tr("limactl create failed: %@", VMLayout.errorTail(created)))
       }
     }
+    // The first boot of a new machine takes ~30 min on Ubuntu 24.04 (27.10.2026):
+    // Lima copies every `mode: data` file with `sudo -iu root`, and while
+    // cloud-final runs logind cannot open the session - pam_systemd waits 2 min
+    // per file. Lima gives up after 10 min by default; later boots take seconds.
     if status != "Running" {
       CMLogger.log("vm-setup: starting \(VMLayout.instanceName)")
       let started = try? await VMLayout.limactl(
-        ["start", "--tty=false", VMLayout.instanceName], timeout: 3600)
+        ["start", "--tty=false", "--timeout", "50m", VMLayout.instanceName], timeout: 3600)
       guard started?.succeeded == true else {
         return fail(
           L10n.tr(