Builded new structure.

Now with remote setup and management Server
more than one Node can be connected
added user auth

management/src/scheduler.js

@@ -0,0 +1,37 @@
+import { agentRequest } from './agentClient.js';
+import { listDueSchedules, markScheduleRun, nextRunFrom } from './store.js';
+
+let timer = null;
+
+export function startScheduler() {
+  if (timer) return;
+  timer = setInterval(runDueSchedules, 30 * 1000);
+  timer.unref?.();
+  runDueSchedules();
+}
+
+async function runDueSchedules() {
+  const now = new Date();
+  const schedules = listDueSchedules(now);
+  for (const schedule of schedules) {
+    try {
+      await agentRequest({
+        id: schedule.node_id,
+        baseUrl: schedule.base_url,
+        token: schedule.token,
+      }, `/backup/${encodeURIComponent(schedule.vm_name)}`, { method: 'POST' });
+
+      markScheduleRun(schedule.id, {
+        lastRunAt: now.toISOString(),
+        lastError: '',
+        nextRunAt: nextRunFrom(now, schedule.interval_hours, schedule.time_of_day),
+      });
+    } catch (error) {
+      markScheduleRun(schedule.id, {
+        lastRunAt: schedule.last_run_at,
+        lastError: String(error.message || error),
+        nextRunAt: new Date(now.getTime() + 5 * 60 * 1000).toISOString(),
+      });
+    }
+  }
+}