Cron: normalize cron.add inputs + align channels (#256)

* fix: harden cron add and align channels

* fix: keep cron tool id params

---------

Co-authored-by: Peter Steinberger <steipete@gmail.com>

src/agents/tools/cron-tool.test.ts

@@ -35,14 +35,31 @@ describe("cron tool", () => {
     expect(call.params).toEqual(expectedParams);
   });
 
-  it("rejects jobId params", async () => {
+  it("normalizes cron.add job payloads", async () => {
     const tool = createCronTool();
-    await expect(
-      tool.execute("call2", {
-        action: "update",
-        jobId: "job-1",
-        patch: { foo: "bar" },
-      }),
-    ).rejects.toThrow("id required");
+    await tool.execute("call2", {
+      action: "add",
+      job: {
+        data: {
+          name: "wake-up",
+          schedule: { atMs: 123 },
+          payload: { text: "hello" },
+        },
+      },
+    });
+
+    expect(callGatewayMock).toHaveBeenCalledTimes(1);
+    const call = callGatewayMock.mock.calls[0]?.[0] as {
+      method?: string;
+      params?: unknown;
+    };
+    expect(call.method).toBe("cron.add");
+    expect(call.params).toEqual({
+      name: "wake-up",
+      schedule: { kind: "at", atMs: 123 },
+      sessionTarget: "main",
+      wakeMode: "next-heartbeat",
+      payload: { kind: "systemEvent", text: "hello" },
+    });
   });
 });