完善智能气阀新建归属选择

新建页面明确说明当前归属四选一，选择新归属时自动清空其他归属；字段改用业务名称并补充选择提示，同时扩展专项检查和中文文档。

frontend/platform_admin/scripts/check-product-ownership-action.mjs

@@ -10,6 +10,11 @@ const componentUrl = new URL(
   import.meta.url,
 );
 const source = await readFile(fileURLToPath(componentUrl), 'utf8');
+const recordPageUrl = new URL(
+  '../src/views/resource/ResourceRecordPage.vue',
+  import.meta.url,
+);
+const recordPageSource = await readFile(fileURLToPath(recordPageUrl), 'utf8');
 const requiredFragments = [
   '@change-relation="changeRelation"',
   'ownershipKeys.includes(field.key)',
@@ -24,4 +29,20 @@ for (const fragment of requiredFragments) {
   }
 }
 
-console.log('智能气阀归属互斥检查通过：选择时自动清空，提交时保留防御校验。');
+const createPageFragments = [
+  '@change-relation="changeRelation"',
+  "mode === 'create' && definition.name === 'product_info'",
+  '当前归属只能选择库房、气站、配送点或用户中的一个；选择新归属时会自动清空其他归属。',
+  "definition.value.name === 'product_info'",
+  'productOwnershipKeys.includes(field.key)',
+  'if (key !== field.key) form[key] = undefined',
+  'await relationLinkage.change(field, value)',
+];
+
+for (const fragment of createPageFragments) {
+  if (!recordPageSource.includes(fragment)) {
+    throw new Error(`智能气阀新建页归属互斥检查缺少实现：${fragment}`);
+  }
+}
+
+console.log('智能气阀归属互斥检查通过：新建页与专用弹窗均自动清空，提交时保留防御校验。');