feat: 优化长期记忆检索和合并操作，支持图结构扩展和智能合并

src/plugin_system/base/base_event.py

@@ -115,75 +115,75 @@ class BaseEvent:
         if not self.enabled:
             return HandlerResultsCollection([])
 
-        # 使用锁确保同一个事件不能同时激活多次
-        async with self.event_handle_lock:
-            sorted_subscribers = sorted(
-                self.subscribers, key=lambda h: h.weight if hasattr(h, "weight") and h.weight != -1 else 0, reverse=True
+        # 移除全局锁，允许同一事件并发触发
+        # async with self.event_handle_lock:
+        sorted_subscribers = sorted(
+            self.subscribers, key=lambda h: h.weight if hasattr(h, "weight") and h.weight != -1 else 0, reverse=True
+        )
+
+        if not sorted_subscribers:
+            return HandlerResultsCollection([])
+
+        concurrency_limit = None
+        if max_concurrency is not None:
+            concurrency_limit = max_concurrency if max_concurrency > 0 else None
+            if concurrency_limit:
+                concurrency_limit = min(concurrency_limit, len(sorted_subscribers))
+
+        semaphore = (
+            asyncio.Semaphore(concurrency_limit)
+            if concurrency_limit and concurrency_limit < len(sorted_subscribers)
+            else None
+        )
+
+        async def _run_handler(subscriber):
+            handler_name = (
+                subscriber.handler_name if hasattr(subscriber, "handler_name") else subscriber.__class__.__name__
             )
 
-            if not sorted_subscribers:
-                return HandlerResultsCollection([])
+            async def _invoke():
+                return await self._execute_subscriber(subscriber, params)
 
-            concurrency_limit = None
-            if max_concurrency is not None:
-                concurrency_limit = max_concurrency if max_concurrency > 0 else None
-                if concurrency_limit:
-                    concurrency_limit = min(concurrency_limit, len(sorted_subscribers))
-
-            semaphore = (
-                asyncio.Semaphore(concurrency_limit)
-                if concurrency_limit and concurrency_limit < len(sorted_subscribers)
-                else None
-            )
-
-            async def _run_handler(subscriber):
-                handler_name = (
-                    subscriber.handler_name if hasattr(subscriber, "handler_name") else subscriber.__class__.__name__
-                )
-
-                async def _invoke():
-                    return await self._execute_subscriber(subscriber, params)
-
-                try:
-                    if handler_timeout and handler_timeout > 0:
-                        result = await asyncio.wait_for(_invoke(), timeout=handler_timeout)
-                    else:
-                        result = await _invoke()
-                except asyncio.TimeoutError:
-                    logger.warning(f"事件处理器 {handler_name} 执行超时 ({handler_timeout}s)")
-                    return HandlerResult(False, True, f"timeout after {handler_timeout}s", handler_name)
-                except Exception as exc:
-                    logger.error(f"事件处理器 {handler_name} 执行失败: {exc}")
-                    return HandlerResult(False, True, str(exc), handler_name)
-
-                if not isinstance(result, HandlerResult):
-                    return HandlerResult(True, True, result, handler_name)
-
-                if not result.handler_name:
-                    result.handler_name = handler_name
-                return result
-
-            async def _guarded_run(subscriber):
-                if semaphore:
-                    async with semaphore:
-                        return await _run_handler(subscriber)
-                return await _run_handler(subscriber)
-
-            tasks = [asyncio.create_task(_guarded_run(subscriber)) for subscriber in sorted_subscribers]
-            results = await asyncio.gather(*tasks, return_exceptions=True)
-
-            processed_results: list[HandlerResult] = []
-            for subscriber, result in zip(sorted_subscribers, results):
-                handler_name = (
-                    subscriber.handler_name if hasattr(subscriber, "handler_name") else subscriber.__class__.__name__
-                )
-                if isinstance(result, Exception):
-                    logger.error(f"事件处理器 {handler_name} 执行失败: {result}")
-                    processed_results.append(HandlerResult(False, True, str(result), handler_name))
+            try:
+                if handler_timeout and handler_timeout > 0:
+                    result = await asyncio.wait_for(_invoke(), timeout=handler_timeout)
                 else:
-                    processed_results.append(result)
+                    result = await _invoke()
+            except asyncio.TimeoutError:
+                logger.warning(f"事件处理器 {handler_name} 执行超时 ({handler_timeout}s)")
+                return HandlerResult(False, True, f"timeout after {handler_timeout}s", handler_name)
+            except Exception as exc:
+                logger.error(f"事件处理器 {handler_name} 执行失败: {exc}")
+                return HandlerResult(False, True, str(exc), handler_name)
 
-            return HandlerResultsCollection(processed_results)
+            if not isinstance(result, HandlerResult):
+                return HandlerResult(True, True, result, handler_name)
+
+            if not result.handler_name:
+                result.handler_name = handler_name
+            return result
+
+        async def _guarded_run(subscriber):
+            if semaphore:
+                async with semaphore:
+                    return await _run_handler(subscriber)
+            return await _run_handler(subscriber)
+
+        tasks = [asyncio.create_task(_guarded_run(subscriber)) for subscriber in sorted_subscribers]
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+
+        processed_results: list[HandlerResult] = []
+        for subscriber, result in zip(sorted_subscribers, results):
+            handler_name = (
+                subscriber.handler_name if hasattr(subscriber, "handler_name") else subscriber.__class__.__name__
+            )
+            if isinstance(result, Exception):
+                logger.error(f"事件处理器 {handler_name} 执行失败: {result}")
+                processed_results.append(HandlerResult(False, True, str(result), handler_name))
+            else:
+                processed_results.append(result)
+
+        return HandlerResultsCollection(processed_results)
 
     @staticmethod
     async def _execute_subscriber(subscriber, params: dict) -> HandlerResult: