同步本地更改

services/schedule_utils.py

@@ -91,8 +91,18 @@ def compute_next_run_at(
 
         if random_delay:
             window_start = candidate_base - timedelta(minutes=15)
-            random_minutes = random.randint(0, 30)
-            candidate = window_start + timedelta(minutes=random_minutes)
+            window_end = candidate_base + timedelta(minutes=15)
+
+            # 只从“未来窗口”中抽样，避免抽到过去时间导致整天被跳过
+            delta_seconds = (now - window_start).total_seconds()
+            if delta_seconds < 0:
+                min_offset = 0
+            else:
+                min_offset = int(delta_seconds // 60) + 1
+            max_offset = int((window_end - window_start).total_seconds() // 60)
+            if min_offset > max_offset:
+                continue
+            candidate = window_start + timedelta(minutes=random.randint(min_offset, max_offset))
         else:
             candidate = candidate_base
 
@@ -110,4 +120,3 @@ def format_cst(dt: datetime) -> str:
         dt = BEIJING_TZ.localize(dt)
     dt = dt.astimezone(BEIJING_TZ)
     return dt.strftime("%Y-%m-%d %H:%M:%S")
-