chore: temporarily restore deleted files for CodeRabbit review

Restoring 27 deleted files and 26 trivially-changed request handlers
to bring the PR under CodeRabbit's 150-file review limit.
These will be re-deleted in the next commit.

packages/redis/src/lib/channels/history-channel.ts

@@ -0,0 +1,6 @@
+import { createChannelEventHistory } from "../channel";
+
+export const createIntegrationHistoryChannel = <TData>(integrationId: string, queryKey: string, maxElements = 32) => {
+  const channelName = `integration:${integrationId}:history:${queryKey}`;
+  return createChannelEventHistory<TData>(channelName, maxElements);
+};