refactor: centralize inbound session updates

src/slack/monitor/message-handler/dispatch.ts

@@ -11,7 +11,6 @@ import { dispatchInboundMessage } from "../../../auto-reply/dispatch.js";
 import { clearHistoryEntriesIfEnabled } from "../../../auto-reply/reply/history.js";
 import { removeAckReactionAfterReply } from "../../../channels/ack-reactions.js";
 import { createReplyDispatcherWithTyping } from "../../../auto-reply/reply/reply-dispatcher.js";
-import { resolveStorePath, updateLastRoute } from "../../../config/sessions.js";
 import { danger, logVerbose, shouldLogVerbose } from "../../../globals.js";
 import { removeSlackReaction } from "../../actions.js";
 import { resolveSlackThreadTargets } from "../../threading.js";
@@ -25,23 +24,6 @@ export async function dispatchPreparedSlackMessage(prepared: PreparedSlackMessag
   const cfg = ctx.cfg;
   const runtime = ctx.runtime;
 
-  if (prepared.isDirectMessage) {
-    const sessionCfg = cfg.session;
-    const storePath = resolveStorePath(sessionCfg?.store, {
-      agentId: route.agentId,
-    });
-    await updateLastRoute({
-      storePath,
-      sessionKey: route.mainSessionKey,
-      deliveryContext: {
-        channel: "slack",
-        to: `user:${message.user}`,
-        accountId: route.accountId,
-      },
-      ctx: prepared.ctxPayload,
-    });
-  }
-
   const { statusThreadTs } = resolveSlackThreadTargets({
     message,
     replyToMode: ctx.replyToMode,