fix: keep LXC updates running when the browser session ends

AppImage/lib/lxc-update-jobs.ts

@@ -0,0 +1,31 @@
+/** Opaque viewer metadata only; updater commands and credentials stay server-side. */
+export type LxcUpdateJob = {
+  id: string
+  vmid: number
+  state: "running" | "finalizing" | "complete"
+  target: "os" | "app" | "both"
+  ct_name: string
+  script_path: string
+  created_at: number
+  exit_code: number | null
+}
+
+const SEEN = "proxmenux-viewed-update-jobs"
+
+export function viewedUpdateJobs(): string[] {
+  try {
+    const value = JSON.parse(localStorage.getItem(SEEN) || "[]")
+    return Array.isArray(value) ? value.filter((id) => typeof id === "string").slice(-128) : []
+  } catch {
+    return []
+  }
+}
+
+export function markUpdateJobViewed(id: string) {
+  try {
+    localStorage.setItem(SEEN, JSON.stringify([...new Set([...viewedUpdateJobs(), id])].slice(-128)))
+    window.dispatchEvent(new Event("proxmenux-update-jobs-viewed"))
+  } catch {
+    // Unavailable browser storage never controls or restarts server work.
+  }
+}