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/utils/check_user/role_check.py

@@ -0,0 +1,53 @@
+#  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 typing import Annotated
+from fastapi import Depends, HTTPException
+from pretor.utils.access import Accessor, TokenData
+from pretor.core.database.table.user import UserAuthority
+from pretor.utils.ray_hook import ray_actor_hook
+
+async def get_authority(user_id: str) -> UserAuthority:
+    from pretor.utils.error import UserNotExistError
+    postgres_database = ray_actor_hook("postgres_database").postgres_database
+    try:
+        user_authority = await postgres_database.get_user_authority.remote(user_id=user_id)
+        return user_authority
+    except UserNotExistError:
+        raise HTTPException(
+            status_code=401,
+            detail="用户不存在或已被删除，请重新登录"
+        )
+    except Exception as e:
+        # Check if it's a RayTaskError wrapping UserNotExistError
+        if "UserNotExistError" in str(e):
+            raise HTTPException(
+                status_code=401,
+                detail="用户不存在或已被删除，请重新登录"
+            )
+        raise
+
+class RoleChecker:
+    def __init__(self, **kwargs):
+        self.allowed_roles = kwargs.get("allowed_roles", )
+
+    async def __call__(self,
+                 token_data: Annotated[TokenData, Depends(Accessor.get_current_user)]):
+        user_authority = await get_authority(token_data.user_id)
+        if user_authority < self.allowed_roles:
+            raise HTTPException(
+                status_code=403,
+                detail={"message": f"User {token_data.user_id} does not have allowed roles"},
+            )
+        return token_data
+