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/fastapi/dependencies/models.py

@@ -0,0 +1,83 @@
+import inspect
+import sys
+from dataclasses import dataclass, field
+from functools import cached_property
+from typing import Any, Callable, List, Optional, Sequence, Union
+
+from fastapi._compat import ModelField
+from fastapi.security.base import SecurityBase
+from fastapi.types import DependencyCacheKey
+from typing_extensions import Literal
+
+if sys.version_info >= (3, 13):  # pragma: no cover
+    from inspect import iscoroutinefunction
+else:  # pragma: no cover
+    from asyncio import iscoroutinefunction
+
+
+@dataclass
+class SecurityRequirement:
+    security_scheme: SecurityBase
+    scopes: Optional[Sequence[str]] = None
+
+
+@dataclass
+class Dependant:
+    path_params: List[ModelField] = field(default_factory=list)
+    query_params: List[ModelField] = field(default_factory=list)
+    header_params: List[ModelField] = field(default_factory=list)
+    cookie_params: List[ModelField] = field(default_factory=list)
+    body_params: List[ModelField] = field(default_factory=list)
+    dependencies: List["Dependant"] = field(default_factory=list)
+    security_requirements: List[SecurityRequirement] = field(default_factory=list)
+    name: Optional[str] = None
+    call: Optional[Callable[..., Any]] = None
+    request_param_name: Optional[str] = None
+    websocket_param_name: Optional[str] = None
+    http_connection_param_name: Optional[str] = None
+    response_param_name: Optional[str] = None
+    background_tasks_param_name: Optional[str] = None
+    security_scopes_param_name: Optional[str] = None
+    security_scopes: Optional[List[str]] = None
+    use_cache: bool = True
+    path: Optional[str] = None
+    scope: Union[Literal["function", "request"], None] = None
+
+    @cached_property
+    def cache_key(self) -> DependencyCacheKey:
+        return (
+            self.call,
+            tuple(sorted(set(self.security_scopes or []))),
+            self.computed_scope or "",
+        )
+
+    @cached_property
+    def is_gen_callable(self) -> bool:
+        if inspect.isgeneratorfunction(self.call):
+            return True
+        dunder_call = getattr(self.call, "__call__", None)  # noqa: B004
+        return inspect.isgeneratorfunction(dunder_call)
+
+    @cached_property
+    def is_async_gen_callable(self) -> bool:
+        if inspect.isasyncgenfunction(self.call):
+            return True
+        dunder_call = getattr(self.call, "__call__", None)  # noqa: B004
+        return inspect.isasyncgenfunction(dunder_call)
+
+    @cached_property
+    def is_coroutine_callable(self) -> bool:
+        if inspect.isroutine(self.call):
+            return iscoroutinefunction(self.call)
+        if inspect.isclass(self.call):
+            return False
+        dunder_call = getattr(self.call, "__call__", None)  # noqa: B004
+        return iscoroutinefunction(dunder_call)
+
+    @cached_property
+    def computed_scope(self) -> Union[str, None]:
+        if self.scope:
+            return self.scope
+        if self.is_gen_callable or self.is_async_gen_callable:
+            return "request"
+        return None