feat: allow dispatch calendar kind other on backend.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/models/pl_dispatch_calendar.py

@@ -24,7 +24,7 @@ class PlDispatchCalendar(Base):
     quantity = Column(String(16), nullable=True, comment="数量文本（吨），最多两位小数，不参与汇总")
     calendar_kind = Column(
         String(16), nullable=False, default="acid", server_default="acid",
-        comment="日历类型：acid酸派车 alkali碱派车",
+        comment="日历类型：acid酸派车 alkali碱派车 other其他",
     )
     tenant_no = Column(String(64), nullable=False, comment="租户编号")
     order_num = Column(Integer, nullable=True, comment="排序号")