refactor: Reorganize datamate-python (#34)

refactor: Reorganize datamate-python (previously label-studio-adapter) into a DDD style structure.

runtime/datamate-python/app/module/shared/schema/__init__.py

@@ -0,0 +1,11 @@
+from .common import (
+    BaseResponseModel,
+    StandardResponse,
+    PaginatedData
+)
+
+__all__ = [
+    "BaseResponseModel",
+    "StandardResponse",
+    "PaginatedData"
+]

runtime/datamate-python/app/module/shared/schema/common.py

@@ -0,0 +1,62 @@
+"""
+通用响应模型
+"""
+from typing import Generic, TypeVar, Optional, List
+from pydantic import BaseModel, Field
+
+# 定义泛型类型变量
+T = TypeVar('T')
+
+# 定义一个将 snake_case 转换为 camelCase 的函数
+def to_camel(string: str) -> str:
+    """将 snake_case 字符串转换为 camelCase"""
+    components = string.split('_')
+    # 首字母小写，其余单词首字母大写
+    return components[0] + ''.join(x.title() for x in components[1:])
+
+class BaseResponseModel(BaseModel):
+    """基础响应模型，启用别名生成器"""
+    
+    class Config:
+        populate_by_name = True
+        alias_generator = to_camel
+
+class StandardResponse(BaseResponseModel, Generic[T]):
+    """
+    标准API响应格式
+    
+    所有API端点应返回此格式，确保响应的一致性
+    """
+    code: int = Field(..., description="HTTP状态码")
+    message: str = Field(..., description="响应消息")
+    data: Optional[T] = Field(None, description="响应数据")
+    
+    class Config:
+        populate_by_name = True
+        alias_generator = to_camel
+        json_schema_extra = {
+            "example": {
+                "code": 200,
+                "message": "success",
+                "data": {}
+            }
+        }
+
+class PaginatedData(BaseResponseModel, Generic[T]):
+    """分页数据容器"""
+    page: int = Field(..., description="当前页码（从1开始）")
+    size: int = Field(..., description="页大小")
+    total_elements: int = Field(..., description="总条数")
+    total_pages: int = Field(..., description="总页数")
+    content: List[T] = Field(..., description="当前页数据")
+    
+    class Config:
+        json_schema_extra = {
+            "example": {
+                "page": 1,
+                "size": 20,
+                "totalElements": 100,
+                "totalPages": 5,
+                "content": []
+            }
+        }