cron: infer payload kind for model-only update patches (openclaw#15664) thanks @rodrigouroz

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check (fails on current origin/main in src/memory/embedding-manager.test-harness.ts; unchanged by this PR)

Co-authored-by: rodrigouroz <384037+rodrigouroz@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/cron/normalize.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { normalizeCronJobCreate } from "./normalize.js";
+import { normalizeCronJobCreate, normalizeCronJobPatch } from "./normalize.js";
 
 describe("normalizeCronJobCreate", () => {
   it("maps legacy payload.provider to payload.channel and strips provider", () => {
@@ -293,3 +293,31 @@ describe("normalizeCronJobCreate", () => {
     expect(delivery.to).toBe("123");
   });
 });
+
+describe("normalizeCronJobPatch", () => {
+  it("infers agentTurn kind for model-only payload patches", () => {
+    const normalized = normalizeCronJobPatch({
+      payload: {
+        model: "anthropic/claude-sonnet-4-5",
+      },
+    }) as unknown as Record<string, unknown>;
+
+    const payload = normalized.payload as Record<string, unknown>;
+    expect(payload.kind).toBe("agentTurn");
+    expect(payload.model).toBe("anthropic/claude-sonnet-4-5");
+  });
+
+  it("does not infer agentTurn kind for delivery-only legacy hints", () => {
+    const normalized = normalizeCronJobPatch({
+      payload: {
+        channel: "telegram",
+        to: "+15550001111",
+      },
+    }) as unknown as Record<string, unknown>;
+
+    const payload = normalized.payload as Record<string, unknown>;
+    expect(payload.kind).toBeUndefined();
+    expect(payload.channel).toBe("telegram");
+    expect(payload.to).toBe("+15550001111");
+  });
+});