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/pypika/clickhouse/array.py

@@ -0,0 +1,94 @@
+import abc
+
+from pypika.terms import (
+    Field,
+    Function,
+    Term,
+)
+from pypika.utils import format_alias_sql
+
+
+class Array(Term):
+    def __init__(self, values: list, converter_cls=None, converter_options: dict = None, alias: str = None):
+        super().__init__(alias)
+        self._values = values
+        self._converter_cls = converter_cls
+        self._converter_options = converter_options or dict()
+
+    def get_sql(self):
+        if self._converter_cls:
+            converted = []
+            for value in self._values:
+                converter = self._converter_cls(value, **self._converter_options)
+                converted.append(converter.get_sql())
+            sql = "".join(["[", ",".join(converted), "]"])
+
+        else:
+            sql = str(self._values)
+
+        return format_alias_sql(sql, self.alias)
+
+
+class HasAny(Function):
+    def __init__(
+        self,
+        left_array: Array or Field,
+        right_array: Array or Field,
+        alias: str = None,
+        schema: str = None,
+    ):
+        self._left_array = left_array
+        self._right_array = right_array
+        self.alias = alias
+        self.schema = schema
+        self.args = ()
+        self.name = "hasAny"
+
+    def get_sql(self, with_alias=False, with_namespace=False, quote_char=None, dialect=None, **kwargs):
+        left = self._left_array.get_sql()
+        right = self._right_array.get_sql()
+        sql = "{name}({left},{right})".format(
+            name=self.name,
+            left='"%s"' % left if isinstance(self._left_array, Field) else left,
+            right='"%s"' % right if isinstance(self._right_array, Field) else right,
+        )
+        return format_alias_sql(sql, self.alias, **kwargs)
+
+
+class _AbstractArrayFunction(Function, metaclass=abc.ABCMeta):
+    def __init__(self, array: Array or Field, alias: str = None, schema: str = None):
+        self.schema = schema
+        self.alias = alias
+        self.name = self.clickhouse_function()
+        self._array = array
+
+    def get_sql(self, with_namespace=False, quote_char=None, dialect=None, **kwargs):
+        array = self._array.get_sql()
+        sql = "{name}({array})".format(
+            name=self.name,
+            array='"%s"' % array if isinstance(self._array, Field) else array,
+        )
+        return format_alias_sql(sql, self.alias, **kwargs)
+
+    @classmethod
+    @abc.abstractmethod
+    def clickhouse_function(cls) -> str:
+        pass
+
+
+class NotEmpty(_AbstractArrayFunction):
+    @classmethod
+    def clickhouse_function(cls) -> str:
+        return "notEmpty"
+
+
+class Empty(_AbstractArrayFunction):
+    @classmethod
+    def clickhouse_function(cls) -> str:
+        return "empty"
+
+
+class Length(_AbstractArrayFunction):
+    @classmethod
+    def clickhouse_function(cls) -> str:
+        return "length"