chore(pl): add script to remount orphaned transport dibang stop links.

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

docs/sql/migrations/2026-09-05-fix-pl-db-link-orphaned-stop.sql

@@ -0,0 +1,17 @@
+-- 备忘：修复 PO20260904024 悬空地磅 link（stop/product 软删重建后未改挂）
+-- 生产确认后执行；亦可使用 scripts/fix_pl_transport_db_link_stop_ids.py --plan-no PO20260904024 --apply
+--
+-- 背景：
+--   link 4AAE759627054CAAB6B5F36D4888CBA4 仍指向软删送货段/产品，
+--   详情按当前段 id 过滤 →「暂无关联地磅单」。
+-- 目标：
+--   stop_id 1D4CB037… → 2036E1B2CEC54509ABC2B22DAA5786F3
+--   plan_product_id DA6B3548… → 537B42A6B7E54D7CBD4C90DC73B185E7
+
+UPDATE pl_transport_db_link
+SET stop_id = '2036E1B2CEC54509ABC2B22DAA5786F3',
+    plan_product_id = '537B42A6B7E54D7CBD4C90DC73B185E7',
+    update_time = NOW()
+WHERE id = '4AAE759627054CAAB6B5F36D4888CBA4'
+  AND plan_id = '551307353C99489786756A3F26C49020'
+  AND del_flag = 0;