feat: 快递100上门取件集成(SDS运单自动生成+面单回传)

- api/kuaidi100: 上门取件API客户端(bOrder/price/cancel/detail,MD5签名封装)
- api/sds: 变体克重(children接口,24h缓存)/面单PDF上传/挂包裹/carriageNoStatus筛选
- flows/sds/waybill_autogen: 每10分钟遍历运单待生成订单(factoryIds+carriageNoStatus+orderStatusCode)
  自动下极兔(returnType=20+tempid出面单),面单回调转PDF回传SDS;
  幂等跳过已有运单;面单超时不自动取消(记人工跟进);schedule 默认 active:false
- scripts: 手动E2E测试脚本 + 回调接收服务(验签MD5(param+salt)+JSONL落盘,配frpc 18090穿透)
- 依赖 +pillow(面单PNG转PDF)

api/sds/models.py

@@ -219,6 +219,26 @@ class ProductListResponse(_SdsModel):
     records: list[Product] = Field(default=[], alias="list")
 
 
+class ProductVariant(_SdsModel):
+    """产品变体(/pod/product/{id}/children):颜色/尺码/克重/包装盒尺寸。"""
+
+    id: int
+    parent_id: int | None = Field(default=None, alias="parentId")
+    sku: str | None = None
+    size: str | None = None
+    color_name: str | None = Field(default=None, alias="colorName")
+    color_code: str | None = Field(default=None, alias="colorCode")
+    status: int | None = None
+    weight: float | None = None  # 克/件
+    box_length: float | None = Field(default=None, alias="boxLength")
+    box_width: float | None = Field(default=None, alias="boxWidth")
+    box_height: float | None = Field(default=None, alias="boxHeight")
+
+
+class ProductChildrenResponse(_SdsModel):
+    records: list[ProductVariant] = Field(default=[], alias="list")
+
+
 # ----- 物流域(混用 snake_case,显式 alias)-----
 
 
@@ -318,6 +338,7 @@ class OrderPageRequest(BaseModel):
     extend_status: str | None = None
     early_warning_type: str | None = None
     item_num_type: str | None = None
+    carriage_no_status: str | None = None  # 运单号状态筛选,如 generate=运单待生成
     limit: int | None = None
     all: bool | None = None