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/tqdm/autonotebook.py

@@ -0,0 +1,29 @@
+"""
+Automatically choose between `tqdm.notebook` and `tqdm.std`.
+
+Usage:
+>>> from tqdm.autonotebook import trange, tqdm
+>>> for i in trange(10):
+...     ...
+"""
+import sys
+from warnings import warn
+
+try:
+    get_ipython = sys.modules['IPython'].get_ipython
+    if 'IPKernelApp' not in get_ipython().config:  # pragma: no cover
+        raise ImportError("console")
+    from .notebook import WARN_NOIPYW, IProgress
+    if IProgress is None:
+        from .std import TqdmWarning
+        warn(WARN_NOIPYW, TqdmWarning, stacklevel=2)
+        raise ImportError('ipywidgets')
+except Exception:
+    from .std import tqdm, trange
+else:  # pragma: no cover
+    from .notebook import tqdm, trange
+    from .std import TqdmExperimentalWarning
+    warn("Using `tqdm.autonotebook.tqdm` in notebook mode."
+         " Use `tqdm.tqdm` instead to force console mode"
+         " (e.g. in jupyter console)", TqdmExperimentalWarning, stacklevel=2)
+__all__ = ["tqdm", "trange"]