fix(settings): сохранять результат операций базы при вторичных сбоях

backend/src/services/system-database-operation.ts

@@ -0,0 +1,23 @@
+export type DatabaseOperationWarnings = { listenerError?: string; schedulerError?: string }
+interface Dependencies {
+  stopListener: () => Promise<void> | void
+  stopScheduler: () => Promise<void> | void
+  startListener: () => Promise<void> | void
+  startScheduler: () => Promise<void> | void
+}
+/** Restart both consumers independently; secondary errors cannot erase a completed command. */
+export async function executeDatabaseOperation<T extends object>(run: () => Promise<T>, deps: Dependencies): Promise<T & DatabaseOperationWarnings> {
+  let result: T | undefined, failed = false, failure: unknown
+  const warnings: DatabaseOperationWarnings = {}
+  try {
+    await deps.stopListener()
+    await deps.stopScheduler()
+    result = await run()
+  } catch (error) { failed = true; failure = error }
+  finally {
+    try { await deps.startListener() } catch { warnings.listenerError = "Не удалось перезапустить приём NetFlow" }
+    try { await deps.startScheduler() } catch { warnings.schedulerError = "Не удалось перезапустить планировщик" }
+  }
+  if (failed) throw failure
+  return { ...result!, ...warnings }
+}