feat: 协作台账支持归档并精简状态列

web/backend/models.py

@@ -1169,6 +1169,18 @@ class HuyaExternalOrder(Base):
     done_at: Mapped[datetime | None] = mapped_column(UTCDateTime, nullable=True)
     void_reason: Mapped[str] = mapped_column(String(256), default="", server_default="")
 
+    # ---- 归档（与业务状态正交：归档后仍是「抢购成功」，只是默认不出现在主台账）----
+    # NULL = 未归档；软隐藏不删数据，取消归档即可恢复。
+    archived_at: Mapped[datetime | None] = mapped_column(
+        UTCDateTime, nullable=True, index=True
+    )
+    archived_by: Mapped[int | None] = mapped_column(
+        ForeignKey("users.id"), nullable=True
+    )
+    archive_reason: Mapped[str] = mapped_column(
+        String(256), default="", server_default=""
+    )
+
     # ---- 只读查询快照（不写 huya_accounts）----
     points: Mapped[int | None] = mapped_column(Integer, nullable=True)
     elite_opened: Mapped[bool | None] = mapped_column(Boolean, nullable=True)