chore: initial commit for Pretor v0.1.0-alpha

正式发布 Pretor 平台的首个 alpha 版本。本项目旨在构建一个基于分布式架构的多智能体协同工作流水线。

核心功能实现：
1. 建立基于 BaseIndividual 的动态插件加载机制。
2. 实现三类核心 worker_individual 子个体。
3. 集成 Ray 框架支持分布式集群调度。
4. 基于 PostgreSQL 的全量持久化存储方案。
5. 提供完整的 FastAPI 后端与 React 前端交互界面。

pretor/core/database/database_exception.py

@@ -0,0 +1,39 @@
+#  Copyright 2026 zhaoxi826
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+from sqlalchemy.exc import IntegrityError, OperationalError
+from pydantic import ValidationError
+from pretor.utils.error import UserNotExistError
+
+from pretor.utils.logger import get_logger
+logger = get_logger('database_exception')
+def database_exception(func):
+    async def wrapper(*args, **kwargs):
+        try:
+            return await func(*args, **kwargs)
+        except ValidationError as e:
+            logger.error(f"对象校验失败:{e}")
+            raise e
+        except IntegrityError as e:
+            logger.error(f"数据库完整性错误 (如重复记录): {e}")
+            raise e
+        except OperationalError as e:
+            logger.error(f"数据库连接异常: {e}")
+            raise e
+        except UserNotExistError as e:
+            logger.error(f"更改密码失败，用户不存在：{e}")
+        except Exception as e:
+            logger.exception(f"未预期的数据库错误: {e}")
+            raise e
+    return wrapper