feat(location): add paicha overview endpoint

app/schemas/location.py

@@ -35,6 +35,20 @@ class LocationResponse(BaseModel):
     previous_location: str | None = None
 
 
+class PaichaOverviewItem(BaseModel):
+    zongpai_no: str
+    work_order_no: str | None = None
+    quantity: int
+    location_code: str | None = None
+    status: str
+
+
+class PaichaOverviewResponse(BaseModel):
+    paicha_no: str
+    total_count: int
+    items: list[PaichaOverviewItem]
+
+
 class DuplicateLocationDetail(BaseModel):
     existing_location: str
     created_at: str