feat: add ORM models for finished goods tables

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/models/__init__.py

@@ -0,0 +1,11 @@
+from app.models.finished_goods import (
+    FinishedGoodsBox,
+    FinishedGoodsBoxItem,
+    FinishedGoodsLocation,
+)
+
+__all__ = [
+    "FinishedGoodsLocation",
+    "FinishedGoodsBox",
+    "FinishedGoodsBoxItem",
+]

app/models/finished_goods.py

@@ -0,0 +1,57 @@
+from datetime import datetime
+
+from sqlalchemy import BigInteger, DateTime, Index, Numeric, String, func
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.core.database import Base
+
+SCHEMA = "CargoTrace"
+
+
+class FinishedGoodsLocation(Base):
+    __tablename__ = "finished_goods_location"
+    __table_args__ = (
+        Index("uk_zongpai_no", "zongpai_no", unique=True),
+        Index("idx_fgl_location_code", "location_code"),
+        {"schema": SCHEMA},
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    zongpai_no: Mapped[str] = mapped_column(String(64), nullable=False)
+    location_code: Mapped[str] = mapped_column(String(64), nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime, nullable=False, server_default=func.getdate()
+    )
+
+
+class FinishedGoodsBox(Base):
+    __tablename__ = "finished_goods_box"
+    __table_args__ = (
+        Index("uk_paichan_box", "paichan_no", "box_no", unique=True),
+        Index("idx_fgb_paichan_no", "paichan_no"),
+        {"schema": SCHEMA},
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    paichan_no: Mapped[str] = mapped_column(String(64), nullable=False)
+    box_no: Mapped[int] = mapped_column(nullable=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime, nullable=False, server_default=func.getdate()
+    )
+
+
+class FinishedGoodsBoxItem(Base):
+    __tablename__ = "finished_goods_box_item"
+    __table_args__ = (
+        Index("idx_fgbi_box_id", "box_id"),
+        Index("idx_fgbi_zongpai_no", "zongpai_no"),
+        {"schema": SCHEMA},
+    )
+
+    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
+    box_id: Mapped[int] = mapped_column(BigInteger, nullable=False)
+    zongpai_no: Mapped[str] = mapped_column(String(64), nullable=False)
+    quantity: Mapped[float | None] = mapped_column(Numeric(18, 3), nullable=True)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime, nullable=False, server_default=func.getdate()
+    )