fix(slack): respect verbose setting and preserve thread context for tool notifications

Fixes two bugs in Slack tool notification delivery:

1. Tool notifications ignored verbose=false - normalized verbose values so
   boolean false/'false' are properly treated as 'off'

2. Thread context lost - Slack outbound adapter now falls back to threadId
   when replyToId is missing, and MessageThreadId is set for thread replies

Closes #1333

src/auto-reply/reply/agent-runner-helpers.ts

@@ -16,19 +16,21 @@ export const createShouldEmitToolResult = (params: {
   storePath?: string;
   resolvedVerboseLevel: VerboseLevel;
 }): (() => boolean) => {
+  // Normalize verbose values from session store/config so false/"false" still means off.
+  const fallbackVerbose = normalizeVerboseLevel(String(params.resolvedVerboseLevel ?? "")) ?? "off";
   return () => {
     if (!params.sessionKey || !params.storePath) {
-      return params.resolvedVerboseLevel !== "off";
+      return fallbackVerbose !== "off";
     }
     try {
       const store = loadSessionStore(params.storePath);
       const entry = store[params.sessionKey];
-      const current = normalizeVerboseLevel(entry?.verboseLevel);
+      const current = normalizeVerboseLevel(String(entry?.verboseLevel ?? ""));
       if (current) return current !== "off";
     } catch {
       // ignore store read failures
     }
-    return params.resolvedVerboseLevel !== "off";
+    return fallbackVerbose !== "off";
   };
 };
 
@@ -37,19 +39,21 @@ export const createShouldEmitToolOutput = (params: {
   storePath?: string;
   resolvedVerboseLevel: VerboseLevel;
 }): (() => boolean) => {
+  // Normalize verbose values from session store/config so false/"false" still means off.
+  const fallbackVerbose = normalizeVerboseLevel(String(params.resolvedVerboseLevel ?? "")) ?? "off";
   return () => {
     if (!params.sessionKey || !params.storePath) {
-      return params.resolvedVerboseLevel === "full";
+      return fallbackVerbose === "full";
     }
     try {
       const store = loadSessionStore(params.storePath);
       const entry = store[params.sessionKey];
-      const current = normalizeVerboseLevel(entry?.verboseLevel);
+      const current = normalizeVerboseLevel(String(entry?.verboseLevel ?? ""));
       if (current) return current === "full";
     } catch {
       // ignore store read failures
     }
-    return params.resolvedVerboseLevel === "full";
+    return fallbackVerbose === "full";
   };
 };
 

src/auto-reply/reply/route-reply.test.ts

@@ -209,6 +209,22 @@ describe("routeReply", () => {
     expect(mocks.sendMessageSlack).toHaveBeenCalledWith("channel:C123", "hi", expect.any(Object));
   });
 
+  it("uses threadId for Slack when replyToId is missing", async () => {
+    mocks.sendMessageSlack.mockClear();
+    await routeReply({
+      payload: { text: "hi" },
+      channel: "slack",
+      to: "channel:C123",
+      threadId: "456.789",
+      cfg: {} as never,
+    });
+    expect(mocks.sendMessageSlack).toHaveBeenCalledWith(
+      "channel:C123",
+      "hi",
+      expect.objectContaining({ threadTs: "456.789" }),
+    );
+  });
+
   it("passes thread id to Telegram sends", async () => {
     mocks.sendMessageTelegram.mockClear();
     await routeReply({