fix: 内存溢出与任务调度优化

api_browser.py

@@ -10,12 +10,27 @@ from bs4 import BeautifulSoup
 import re
 import time
 import atexit
+import weakref
 from typing import Optional, Callable
 from dataclasses import dataclass
 
 
 BASE_URL = "https://postoa.aidunsoft.com"
 
+_api_browser_instances: "weakref.WeakSet[APIBrowser]" = weakref.WeakSet()
+
+
+def _cleanup_api_browser_instances():
+    """进程退出时清理残留的API浏览器实例（弱引用，不阻止GC）"""
+    for inst in list(_api_browser_instances):
+        try:
+            inst.close()
+        except Exception:
+            pass
+
+
+atexit.register(_cleanup_api_browser_instances)
+
 
 @dataclass
 class APIBrowseResult:
@@ -52,8 +67,7 @@ class APIBrowser:
         else:
             self.proxy_server = None
 
-        # 注册退出清理函数
-        atexit.register(self._cleanup_on_exit)
+        _api_browser_instances.add(self)
 
     def log(self, message: str):
         """记录日志"""
@@ -427,14 +441,10 @@ class APIBrowser:
             self.session.close()
         except:
             pass
-
-    def _cleanup_on_exit(self):
-        """进程退出时的清理函数（由atexit调用）"""
-        if not self._closed:
+        finally:
             try:
-                self.session.close()
-                self._closed = True
-            except:
+                _api_browser_instances.discard(self)
+            except Exception:
                 pass
 
     def __enter__(self):