统一智能气阀空归属展示

库房、气站、配送点和用户归属为空时统一显示未填写，保留归属互斥与接口规则，并补充专项检查、中文操作日志及项目文档。

frontend/platform_admin/package.json

@@ -23,6 +23,7 @@
     "staff-relations:check": "node scripts/check-staff-relation-policy.mjs",
     "user-address-display:check": "node scripts/check-user-address-relation-display.mjs",
     "product-ownership:check": "node scripts/check-product-ownership-action.mjs",
+    "product-ownership-display:check": "node scripts/check-product-ownership-display.mjs",
     "resource-search:check": "node scripts/check-resource-search.mjs",
     "audit:platform": "node scripts/check-backend-contract.mjs",
     "lint": "biome lint .",