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。

tests/core/database/database_exception_test.py

@@ -0,0 +1,74 @@
+import pytest
+from unittest.mock import patch
+from sqlalchemy.exc import IntegrityError, OperationalError
+from pydantic import ValidationError
+from pretor.utils.error import UserNotExistError
+from pretor.core.database.database_exception import database_exception
+
+@database_exception
+async def success_func():
+    return "success"
+
+@database_exception
+async def validation_error_func():
+    raise ValidationError.from_exception_data(title="Mock", line_errors=[])
+
+@database_exception
+async def integrity_error_func():
+    raise IntegrityError("mock_statement", "mock_params", "mock_orig")
+
+@database_exception
+async def operational_error_func():
+    raise OperationalError("mock_statement", "mock_params", "mock_orig")
+
+@database_exception
+async def user_not_exist_error_func():
+    raise UserNotExistError("mock user")
+
+@database_exception
+async def exception_func():
+    raise Exception("mock generic exception")
+
+@pytest.mark.asyncio
+async def test_success_func():
+    assert await success_func() == "success"
+
+@pytest.mark.asyncio
+@patch("pretor.core.database.database_exception.logger")
+async def test_validation_error(mock_logger):
+    with pytest.raises(ValidationError):
+        await validation_error_func()
+    mock_logger.error.assert_called_once()
+    assert "对象校验失败" in mock_logger.error.call_args[0][0]
+
+@pytest.mark.asyncio
+@patch("pretor.core.database.database_exception.logger")
+async def test_integrity_error(mock_logger):
+    with pytest.raises(IntegrityError):
+        await integrity_error_func()
+    mock_logger.error.assert_called_once()
+    assert "数据库完整性错误" in mock_logger.error.call_args[0][0]
+
+@pytest.mark.asyncio
+@patch("pretor.core.database.database_exception.logger")
+async def test_operational_error(mock_logger):
+    with pytest.raises(OperationalError):
+        await operational_error_func()
+    mock_logger.error.assert_called_once()
+    assert "数据库连接异常" in mock_logger.error.call_args[0][0]
+
+@pytest.mark.asyncio
+@patch("pretor.core.database.database_exception.logger")
+async def test_user_not_exist_error(mock_logger):
+    result = await user_not_exist_error_func()
+    assert result is None
+    mock_logger.error.assert_called_once()
+    assert "更改密码失败，用户不存在" in mock_logger.error.call_args[0][0]
+
+@pytest.mark.asyncio
+@patch("pretor.core.database.database_exception.logger")
+async def test_generic_exception(mock_logger):
+    with pytest.raises(Exception, match="mock generic exception"):
+        await exception_func()
+    mock_logger.exception.assert_called_once()
+    assert "未预期的数据库错误" in mock_logger.exception.call_args[0][0]