fix(cron): add retry policy for one-shot jobs on transient errors (#24355) (openclaw#24435) thanks @hugenshen

Verified:
- pnpm install --frozen-lockfile
- pnpm check
- pnpm test -- --run src/cron/service.issue-regressions.test.ts src/config/config-misc.test.ts

Co-authored-by: hugenshen <16300669+hugenshen@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/config/config-misc.test.ts

@@ -193,6 +193,19 @@ describe("cron webhook schema", () => {
 
     expect(res.success).toBe(false);
   });
+
+  it("accepts cron.retry config", () => {
+    const res = OpenClawSchema.safeParse({
+      cron: {
+        retry: {
+          maxAttempts: 5,
+          backoffMs: [60000, 120000, 300000],
+          retryOn: ["rate_limit", "network"],
+        },
+      },
+    });
+    expect(res.success).toBe(true);
+  });
 });
 
 describe("broadcast", () => {