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/cachetools-6.2.2.dist-info/INSTALLER

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+pip

backend_service/venv/lib/python3.13/site-packages/cachetools-6.2.2.dist-info/METADATA

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+Metadata-Version: 2.4
+Name: cachetools
+Version: 6.2.2
+Summary: Extensible memoizing collections and decorators
+Home-page: https://github.com/tkem/cachetools/
+Author: Thomas Kemmer
+Author-email: tkemmer@computer.org
+License: MIT
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Environment :: Other Environment
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Requires-Python: >=3.9
+License-File: LICENSE
+Dynamic: license-file
+
+cachetools
+========================================================================
+
+.. image:: https://img.shields.io/pypi/v/cachetools
+   :target: https://pypi.org/project/cachetools/
+   :alt: Latest PyPI version
+
+.. image:: https://img.shields.io/github/actions/workflow/status/tkem/cachetools/ci.yml
+   :target: https://github.com/tkem/cachetools/actions/workflows/ci.yml
+   :alt: CI build status
+
+.. image:: https://img.shields.io/readthedocs/cachetools
+   :target: https://cachetools.readthedocs.io/
+   :alt: Documentation build status
+
+.. image:: https://img.shields.io/codecov/c/github/tkem/cachetools/master.svg
+   :target: https://codecov.io/gh/tkem/cachetools
+   :alt: Test coverage
+
+.. image:: https://img.shields.io/librariesio/sourcerank/pypi/cachetools
+   :target: https://libraries.io/pypi/cachetools
+   :alt: Libraries.io SourceRank
+
+.. image:: https://img.shields.io/github/license/tkem/cachetools
+   :target: https://raw.github.com/tkem/cachetools/master/LICENSE
+   :alt: License
+
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+   :target: https://github.com/psf/black
+   :alt: Code style: black
+
+
+This module provides various memoizing collections and decorators,
+including variants of the Python Standard Library's `@lru_cache`_
+function decorator.
+
+.. code-block:: python
+
+   from cachetools import cached, LRUCache, TTLCache
+
+   # speed up calculating Fibonacci numbers with dynamic programming
+   @cached(cache={})
+   def fib(n):
+       return n if n < 2 else fib(n - 1) + fib(n - 2)
+
+   # cache least recently used Python Enhancement Proposals
+   @cached(cache=LRUCache(maxsize=32))
+   def get_pep(num):
+       url = 'http://www.python.org/dev/peps/pep-%04d/' % num
+       with urllib.request.urlopen(url) as s:
+           return s.read()
+
+   # cache weather data for no longer than ten minutes
+   @cached(cache=TTLCache(maxsize=1024, ttl=600))
+   def get_weather(place):
+       return owm.weather_at_place(place).get_weather()
+
+For the purpose of this module, a *cache* is a mutable_ mapping_ of a
+fixed maximum size.  When the cache is full, i.e. by adding another
+item the cache would exceed its maximum size, the cache must choose
+which item(s) to discard based on a suitable `cache algorithm`_.
+
+This module provides multiple cache classes based on different cache
+algorithms, as well as decorators for easily memoizing function and
+method calls.
+
+
+Installation
+------------------------------------------------------------------------
+
+cachetools is available from PyPI_ and can be installed by running::
+
+  pip install cachetools
+
+Typing stubs for this package are provided by typeshed_ and can be
+installed by running::
+
+  pip install types-cachetools
+
+
+Project Resources
+------------------------------------------------------------------------
+
+- `Documentation`_
+- `Issue tracker`_
+- `Source code`_
+- `Change log`_
+
+
+Related Projects
+------------------------------------------------------------------------
+
+- asyncache_: Helpers to use cachetools_ with asyncio.
+- cachetools-async_: Helpers to use cachetools_ with asyncio.
+- cacheing_: Pure Python Cacheing Library.
+- CacheToolsUtils_: Stackable cache classes for sharing, encryption,
+  statistics *and more* on top of cachetools_, redis_ and memcached_.
+- shelved-cache_: Persistent cache implementation for Python
+  cachetools_.
+
+
+License
+------------------------------------------------------------------------
+
+Copyright (c) 2014-2025 Thomas Kemmer.
+
+Licensed under the `MIT License`_.
+
+
+.. _@lru_cache: https://docs.python.org/3/library/functools.html#functools.lru_cache
+.. _mutable: https://docs.python.org/dev/glossary.html#term-mutable
+.. _mapping: https://docs.python.org/dev/glossary.html#term-mapping
+.. _cache algorithm: https://en.wikipedia.org/wiki/Cache_algorithms
+
+.. _PyPI: https://pypi.org/project/cachetools/
+.. _typeshed: https://github.com/python/typeshed/
+.. _Documentation: https://cachetools.readthedocs.io/
+.. _Issue tracker: https://github.com/tkem/cachetools/issues/
+.. _Source code: https://github.com/tkem/cachetools/
+.. _Change log: https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst
+.. _MIT License: https://raw.github.com/tkem/cachetools/master/LICENSE
+
+.. _asyncache: https://pypi.org/project/asyncache/
+.. _cachetools-async: https://pypi.org/project/cachetools-async/
+.. _cacheing: https://pypi.org/project/cacheing/
+.. _CacheToolsUtils: https://pypi.org/project/CacheToolsUtils/
+.. _shelved-cache: https://pypi.org/project/shelved-cache/
+.. _cachetools: https://pypi.org/project/cachetools/
+.. _redis: https://redis.io/
+.. _memcached: https://memcached.org/

backend_service/venv/lib/python3.13/site-packages/cachetools-6.2.2.dist-info/RECORD

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+cachetools-6.2.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+cachetools-6.2.2.dist-info/METADATA,sha256=vZyOtgPIFJ3fJSTT7sNsIyGI76nbQ-hY-JNoPSghHXw,5621
+cachetools-6.2.2.dist-info/RECORD,,
+cachetools-6.2.2.dist-info/WHEEL,sha256=_zCd3N1l69ArxyTb8rzEoP9TpbYXkqRFSNOD5OuxnTs,91
+cachetools-6.2.2.dist-info/licenses/LICENSE,sha256=I8Tv96HAJ6l3oLecRJfhdYLDNMXxfvasjKC1LR59hBc,1085
+cachetools-6.2.2.dist-info/top_level.txt,sha256=ai2FH78TGwoBcCgVfoqbzk5IQCtnDukdSs4zKuVPvDs,11
+cachetools/__init__.py,sha256=GS0aFTte_0k4DkTni08t9EvtaZTMKxRJrNrRclWzfyw,21281
+cachetools/__pycache__/__init__.cpython-313.pyc,,
+cachetools/__pycache__/_cached.cpython-313.pyc,,
+cachetools/__pycache__/_cachedmethod.cpython-313.pyc,,
+cachetools/__pycache__/func.cpython-313.pyc,,
+cachetools/__pycache__/keys.cpython-313.pyc,,
+cachetools/_cached.py,sha256=F2mkYcg4T3wWk17OminGg0PiyCF5hdPBUZUPYvDEJWc,6444
+cachetools/_cachedmethod.py,sha256=Rk2M14yCNUNkZhOivvYXGQeniOu93xT8f37ZOzKlx9k,3413
+cachetools/func.py,sha256=cB2gBDCRDoZMeikezuGvaDxRhZ4P44UmCa8r-3UDhTE,3117
+cachetools/keys.py,sha256=thasPfe3yJzsMZLMQS_bdiJLheK0mtLTZCgA0JZ3AF8,1786

backend_service/venv/lib/python3.13/site-packages/cachetools-6.2.2.dist-info/WHEEL

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+Wheel-Version: 1.0
+Generator: setuptools (80.9.0)
+Root-Is-Purelib: true
+Tag: py3-none-any
+

backend_service/venv/lib/python3.13/site-packages/cachetools-6.2.2.dist-info/licenses/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2014-2025 Thomas Kemmer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

backend_service/venv/lib/python3.13/site-packages/cachetools-6.2.2.dist-info/top_level.txt

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+cachetools