feat(wecom_bot): add Wecom Bot QR code scan auth

agent/skills/manager.py

@@ -102,13 +102,17 @@ class SkillManager:
             else:
                 enabled = entry.metadata.default_enabled if entry.metadata else True
 
-            merged[name] = {
+            entry_dict = {
                 "name": name,
                 "description": skill.description,
                 "source": prev.get("source") or skill.source,
                 "enabled": enabled,
                 "category": category,
             }
+            display_name = prev.get("display_name")
+            if display_name:
+                entry_dict["display_name"] = display_name
+            merged[name] = entry_dict
 
         self.skills_config = merged
         self._save_skills_config()

agent/tools/browser/browser_service.py

@@ -244,10 +244,13 @@ class BrowserService:
         with self._lock:
             if self._alive and self._thread and self._thread.is_alive():
                 return
+            # Wait for old thread to fully exit before creating a new one
+            old = self._thread
+            if old and old.is_alive():
+                old.join(timeout=5)
+            # Fresh queue to avoid stale sentinels from a previous close()
+            self._task_queue = queue.Queue()
             self._alive = True
-            # Reuse existing queue so tasks queued during restart are not lost
-            if self._task_queue is None:
-                self._task_queue = queue.Queue()
             self._ready = threading.Event()
             self._thread = threading.Thread(target=self._run_loop, daemon=True, name="BrowserThread")
             self._thread.start()