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/shortuuid/cli.py

@@ -0,0 +1,50 @@
+import argparse
+import sys
+from typing import Any
+from uuid import UUID
+
+from .main import decode
+from .main import encode
+from .main import uuid
+
+
+def encode_cli(args: argparse.Namespace):
+    print(encode(args.uuid))
+
+
+def decode_cli(args: argparse.Namespace):
+    print(str(decode(args.shortuuid, legacy=args.legacy)))
+
+
+def cli(*args: Any) -> None:
+    parser = argparse.ArgumentParser(
+        description="Generate, encode and decode shortuuids",
+        epilog="top-level command generates a random shortuuid",
+    )
+
+    subparsers = parser.add_subparsers(help="sub-command help")
+
+    encode_parser = subparsers.add_parser(
+        "encode", help="Encode a UUID into a short UUID", description=encode.__doc__
+    )
+    encode_parser.add_argument("uuid", type=UUID, help="UUID to be encoded")
+    encode_parser.set_defaults(func=encode_cli)
+
+    decode_parser = subparsers.add_parser(
+        "decode", help="Decode a short UUID into a UUID", description=decode.__doc__
+    )
+    decode_parser.add_argument("shortuuid", type=str, help="Short UUID to be decoded")
+    decode_parser.add_argument("--legacy", action="store_true")
+    decode_parser.set_defaults(func=decode_cli)
+
+    passed_args = parser.parse_args(*args)
+
+    if hasattr(passed_args, "func"):
+        passed_args.func(passed_args)
+    else:
+        # Maintain legacy behaviour
+        print(uuid())
+
+
+if __name__ == "__main__":
+    cli(sys.argv[1:])