ui(edit): 抓取条数回写当前生效值(源覆盖→default.conf→20 兜底)

web/app.py

@@ -870,8 +870,10 @@ def edit_source(name):
     if request.method == "GET":
         current_time = ",".join(t for t in pl.schedule_times(name).split(",") if t.strip()) or "-"
         conf = read_conf(name)
+        # 回写当前生效的抓取条数(源覆盖优先,否则 default.conf,再兜底 20)
+        current_count = conf.get("COUNT") or read_conf("default").get("COUNT") or "20"
         return render_template("edit.html", name=name, current_time=current_time, conf=conf,
-                               providers=get_providers())
+                               current_count=current_count, providers=get_providers())
 
     # POST: 执行 modify-source.sh
     time = request.form.get("time", "").strip()

web/templates/edit.html

@@ -17,8 +17,8 @@
     <label for="count">抓取条数</label>
     <input type="number" id="count" name="count" min="1"
            placeholder="留空不变"
-           value="{{ conf.get('COUNT', '') }}">
-    <div class="hint">当前: {{ conf.get('COUNT', '(继承 default.conf)') }}</div>
+           value="{{ current_count }}">
+    <div class="hint">当前生效 {{ current_count }} 条{% if not conf.get('COUNT') %}(继承全局默认,保存后写入本源覆盖){% endif %}</div>
   </div>
 
   <div class="form-group">