fix(cron): use job config for cleanup instead of hardcoded "keep" (openclaw#15427) thanks @arosstale

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check
- pnpm test

Co-authored-by: arosstale <117890364+arosstale@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/cron/isolated-agent.delivers-response-has-heartbeat-ok-but-includes.test.ts

@@ -205,6 +205,66 @@ describe("runCronIsolatedAgentTurn", () => {
 
       expect(res.status).toBe("ok");
       expect(runSubagentAnnounceFlow).toHaveBeenCalledTimes(1);
+      const announceArgs = vi.mocked(runSubagentAnnounceFlow).mock.calls[0]?.[0] as
+        | { cleanup?: "keep" | "delete" }
+        | undefined;
+      expect(announceArgs?.cleanup).toBe("keep");
+      expect(deps.sendMessageTelegram).not.toHaveBeenCalled();
+    });
+  });
+
+  it("passes cleanup=delete to announce flow when job.deleteAfterRun is true", async () => {
+    await withTempHome(async (home) => {
+      const storePath = await writeSessionStore(home);
+      const deps: CliDeps = {
+        sendMessageWhatsApp: vi.fn(),
+        sendMessageTelegram: vi.fn().mockResolvedValue({
+          messageId: "t1",
+          chatId: "123",
+        }),
+        sendMessageDiscord: vi.fn(),
+        sendMessageSignal: vi.fn(),
+        sendMessageIMessage: vi.fn(),
+      };
+      vi.mocked(runEmbeddedPiAgent).mockResolvedValue({
+        payloads: [{ text: "HEARTBEAT_OK 🦞" }],
+        meta: {
+          durationMs: 5,
+          agentMeta: { sessionId: "s", provider: "p", model: "m" },
+        },
+      });
+
+      const cfg = makeCfg(home, storePath);
+      cfg.agents = {
+        ...cfg.agents,
+        defaults: {
+          ...cfg.agents?.defaults,
+          heartbeat: { ackMaxChars: 0 },
+        },
+      };
+
+      const res = await runCronIsolatedAgentTurn({
+        cfg,
+        deps,
+        job: {
+          ...makeJob({
+            kind: "agentTurn",
+            message: "do it",
+          }),
+          deleteAfterRun: true,
+          delivery: { mode: "announce", channel: "telegram", to: "123" },
+        },
+        message: "do it",
+        sessionKey: "cron:job-1",
+        lane: "cron",
+      });
+
+      expect(res.status).toBe("ok");
+      expect(runSubagentAnnounceFlow).toHaveBeenCalledTimes(1);
+      const announceArgs = vi.mocked(runSubagentAnnounceFlow).mock.calls[0]?.[0] as
+        | { cleanup?: "keep" | "delete" }
+        | undefined;
+      expect(announceArgs?.cleanup).toBe("delete");
       expect(deps.sendMessageTelegram).not.toHaveBeenCalled();
     });
   });

src/cron/isolated-agent/run.ts

@@ -598,7 +598,7 @@ export async function runCronIsolatedAgentTurn(params: {
           requesterDisplayKey: announceSessionKey,
           task: taskLabel,
           timeoutMs,
-          cleanup: "keep",
+          cleanup: params.job.deleteAfterRun ? "delete" : "keep",
           roundOneReply: synthesizedText,
           waitForCompletion: false,
           startedAt: runStartedAt,