Cron: route reminders by session namespace

src/infra/heartbeat-wake.test.ts

@@ -247,4 +247,36 @@ describe("heartbeat-wake", () => {
     expect(handler).toHaveBeenCalledWith({ reason: "manual" });
     expect(hasPendingHeartbeatWake()).toBe(false);
   });
+
+  it("forwards wake target fields and preserves them across retries", async () => {
+    vi.useFakeTimers();
+    const handler = vi
+      .fn()
+      .mockResolvedValueOnce({ status: "skipped", reason: "requests-in-flight" })
+      .mockResolvedValueOnce({ status: "ran", durationMs: 1 });
+    setHeartbeatWakeHandler(handler);
+
+    requestHeartbeatNow({
+      reason: "cron:job-1",
+      agentId: "ops",
+      sessionKey: "agent:ops:discord:channel:alerts",
+      coalesceMs: 0,
+    });
+
+    await vi.advanceTimersByTimeAsync(1);
+    expect(handler).toHaveBeenCalledTimes(1);
+    expect(handler.mock.calls[0]?.[0]).toEqual({
+      reason: "cron:job-1",
+      agentId: "ops",
+      sessionKey: "agent:ops:discord:channel:alerts",
+    });
+
+    await vi.advanceTimersByTimeAsync(1000);
+    expect(handler).toHaveBeenCalledTimes(2);
+    expect(handler.mock.calls[1]?.[0]).toEqual({
+      reason: "cron:job-1",
+      agentId: "ops",
+      sessionKey: "agent:ops:discord:channel:alerts",
+    });
+  });
 });