fix: dedupe inbound messages across providers

src/slack/monitor.tool-result.test.ts

@@ -1,6 +1,7 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
 import { HISTORY_CONTEXT_MARKER } from "../auto-reply/reply/history.js";
+import { resetInboundDedupe } from "../auto-reply/reply/inbound-dedupe.js";
 import { CURRENT_MESSAGE_MARKER } from "../auto-reply/reply/mentions.js";
 import { monitorSlackProvider } from "./monitor.js";
 
@@ -100,6 +101,7 @@ async function waitForEvent(name: string) {
 }
 
 beforeEach(() => {
+  resetInboundDedupe();
   config = {
     messages: {
       responsePrefix: "PFX",