fix(scheduled-task): release page delivery contracts before notifying users

Scheduled automation now prepares and retries MindSpace delivery contracts,
blocks WeChat pushes when public HTML links are not ready, and reconciles
stuck static preparing contracts on each worker scan.

Co-authored-by: Cursor <cursoragent@cursor.com>

scheduled-task-worker.test.mjs

@@ -54,6 +54,7 @@ test('scheduled task worker executes due task and completes one-shot task', asyn
       sessionId: 'session-1',
       requestId: 'req-1',
       deliveryText: '页面：https://example.com/news.html',
+      readyPaths: [],
     }),
     logger: { warn() {}, info() {} },
     runOnStart: false,
@@ -224,6 +225,7 @@ test('scheduled task worker keeps success when wechat notification fails', async
       sessionId: 'session-4',
       requestId: 'req-4',
       deliveryText: '页面已生成：https://example.com/news.html',
+      readyPaths: [],
     }),
     logger: { warn() {} },
     runOnStart: false,
@@ -234,3 +236,56 @@ test('scheduled task worker keeps success when wechat notification fails', async
 
   assert.deepEqual(calls, ['notify:web', 'success:task-4']);
 });
+
+test('scheduled task worker marks failure when page link is not deliverable yet', async () => {
+  const calls = [];
+  const task = {
+    id: 'task-5',
+    userId: 'user-5',
+    title: '每日新闻页',
+    recurrence: 'daily',
+    notifyChannel: 'web',
+    attempts: 1,
+  };
+  const worker = startScheduledTaskWorker({
+    intervalMs: 60_000,
+    userAuth: { id: 'user-auth' },
+    tkmindProxy: { id: 'proxy' },
+    scheduledTaskService: {
+      async listDueTasks() {
+        return [task];
+      },
+      async lockTask() {
+        return task;
+      },
+      async markTaskRunning(input) {
+        return input;
+      },
+      async markTaskSucceeded() {
+        calls.push('success');
+      },
+      async markTaskFailed(input, err) {
+        calls.push(`failed:${err.code}`);
+        return { ...input, status: 'failed', lastError: err.message };
+      },
+    },
+    scheduleService: {
+      async createUserNotification(input) {
+        calls.push(`notify:${input.notificationType}`);
+      },
+    },
+    executeTask: async () => ({
+      sessionId: 'session-5',
+      requestId: 'req-5',
+      deliveryText: '页面：https://m.tkmind.cn/MindSpace/user-5/public/daily-news.html',
+      readyPaths: [],
+    }),
+    logger: { warn() {} },
+    runOnStart: false,
+  });
+
+  await worker.runOnce();
+  worker.stop();
+
+  assert.deepEqual(calls, ['failed:SCHEDULED_TASK_NON_DELIVERY', 'notify:scheduled_task_failed']);
+});