chore: 添加虚拟环境到仓库

- 添加 backend_service/venv 虚拟环境
- 包含所有Python依赖包
- 注意：虚拟环境约393MB，包含12655个文件

backend_service/venv/lib/python3.13/site-packages/agentscope/exception/__init__.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+"""The exception module in agentscope."""
+
+from ._exception_base import AgentOrientedExceptionBase
+from ._tool import (
+    ToolInterruptedError,
+    ToolNotFoundError,
+    ToolInvalidArgumentsError,
+)
+
+__all__ = [
+    "AgentOrientedExceptionBase",
+    "ToolInterruptedError",
+    "ToolNotFoundError",
+    "ToolInvalidArgumentsError",
+]

backend_service/venv/lib/python3.13/site-packages/agentscope/exception/_exception_base.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+"""The base exception class in agentscope."""
+
+
+class AgentOrientedExceptionBase(Exception):
+    """The base class for all agent-oriented exceptions. These exceptions are
+    expect to the captured and exposed to the agent during runtime, so that
+    agents can handle the error appropriately during the runtime.
+    """
+
+    def __init__(self, message: str):
+        """Initialize the exception with a message."""
+        super().__init__(message)
+        self.message = message
+
+    def __str__(self) -> str:
+        """Return the string representation of the exception."""
+        return f"{self.__class__.__name__}: {self.message}"

backend_service/venv/lib/python3.13/site-packages/agentscope/exception/_tool.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+"""The tool-related exceptions in agentscope."""
+
+from ._exception_base import AgentOrientedExceptionBase
+
+
+class ToolNotFoundError(AgentOrientedExceptionBase):
+    """Exception raised when a tool was not found."""
+
+
+class ToolInterruptedError(AgentOrientedExceptionBase):
+    """Exception raised when a tool calling was interrupted by the user."""
+
+
+class ToolInvalidArgumentsError(AgentOrientedExceptionBase):
+    """Exception raised when the arguments passed to a tool are invalid."""