refactor(test): deduplicate isolated agent cron test helpers

src/cron/isolated-agent.delivery.test-helpers.ts

@@ -0,0 +1,29 @@
+import { vi } from "vitest";
+import { runEmbeddedPiAgent } from "../agents/pi-embedded.js";
+import type { CliDeps } from "../cli/deps.js";
+
+export function createCliDeps(overrides: Partial<CliDeps> = {}): CliDeps {
+  return {
+    sendMessageSlack: vi.fn(),
+    sendMessageWhatsApp: vi.fn(),
+    sendMessageTelegram: vi.fn(),
+    sendMessageDiscord: vi.fn(),
+    sendMessageSignal: vi.fn(),
+    sendMessageIMessage: vi.fn(),
+    ...overrides,
+  };
+}
+
+export function mockAgentPayloads(
+  payloads: Array<Record<string, unknown>>,
+  extra: Partial<Awaited<ReturnType<typeof runEmbeddedPiAgent>>> = {},
+): void {
+  vi.mocked(runEmbeddedPiAgent).mockResolvedValue({
+    payloads,
+    meta: {
+      durationMs: 5,
+      agentMeta: { sessionId: "s", provider: "p", model: "m" },
+    },
+    ...extra,
+  });
+}