chore: import upstream snapshot with attribution

apps/sim/background/table-run-dispatcher.ts

@@ -0,0 +1,37 @@
+import { createLogger } from '@sim/logger'
+import { toError } from '@sim/utils/errors'
+import { task } from '@trigger.dev/sdk'
+import { runDispatcherToCompletion } from '@/lib/table/dispatcher'
+
+const logger = createLogger('TableRunDispatcherTask')
+
+export interface TableRunDispatcherPayload {
+  dispatchId: string
+}
+
+/**
+ * Trigger.dev wrapper around `dispatcherStep`. One task run holds the
+ * dispatcher loop for the dispatch's entire lifetime — each iteration
+ * processes a window of cells via `batchTriggerAndWait`, which checkpoints
+ * the parent via CRIU during the wait so we don't pay compute while cells
+ * execute. The cursor is persisted in DB; if this run crashes, trigger.dev
+ * retries and the next attempt resumes from the persisted cursor.
+ */
+export const tableRunDispatcherTask = task({
+  id: 'table-run-dispatcher',
+  machine: 'small-1x',
+  retry: { maxAttempts: 3 },
+  queue: {
+    name: 'table-run-dispatcher',
+    concurrencyLimit: 8,
+  },
+  run: async (payload: TableRunDispatcherPayload) => {
+    const { dispatchId } = payload
+    try {
+      await runDispatcherToCompletion(dispatchId)
+    } catch (err) {
+      logger.error(`[${dispatchId}] dispatcher loop failed`, { error: toError(err).message })
+      throw err
+    }
+  },
+})