fix(up): hard timeout and progress for follower capture

tests/test_up_profile.py

@@ -82,6 +82,41 @@ def test_capture_dedupes_and_continues_after_failure():
             db.close()
 
 
+class BlockingClient:
+    """模拟 DNS/传输层挂起：请求永不返回。"""
+
+    def __init__(self, *, block=()):
+        self.calls = []
+        self.block = set(block)
+
+    def relation_stat(self, mid):
+        self.calls.append(int(mid))
+        if int(mid) in self.block:
+            time.sleep(5)
+            raise AssertionError("不应返回")
+        return SimpleNamespace(mid=int(mid), follower=1000 + int(mid), following=5)
+
+
+def test_capture_times_out_and_continues():
+    with tempfile.TemporaryDirectory() as tmp:
+        db, repo = setup(tmp)
+        try:
+            client = BlockingClient(block={100})
+            service = UpProfileService(
+                repo, lambda: client, clock=lambda: NOW,
+                request_timeout=0.05, heartbeat=1,
+            )
+            result = service.capture([100, 200])
+            assert result.requested == 2
+            assert result.failed == 1
+            assert "timeout" in result.errors[0]
+            # 卡住的 UP 不影响后续
+            assert repo.get_video(3)["up_follower"] == 1200
+            assert repo.get_video(1)["up_follower"] is None
+        finally:
+            db.close()
+
+
 def test_capture_marks_old_videos_as_backfilled():
     with tempfile.TemporaryDirectory() as tmp:
         db, repo = setup(tmp)