feat(store): add two-level store categories for admin and partner open-store

Admin CRUD under stores menu; partner picks leaf category on create.
Default sync only inserts missing rows and never updates existing ones.

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

server/dukang-api/prisma/seed-v31.ts

@@ -266,13 +266,36 @@ async function main() {
 
 
 
-  const categories = await Promise.all([
-
-    prisma.commonStoreCategory.create({ data: { code: 'HOTPOT', name: '火锅', sort: 1 } }),
-
-    prisma.commonStoreCategory.create({ data: { code: 'LOCAL', name: '地方菜', sort: 2 } }),
-
-  ]);
+  const { DEFAULT_STORE_CATEGORY_TREE } = await import('../src/modules/store/store-category.defaults');
+  const categoryByCode = new Map<string, { id: bigint }>();
+  for (const root of DEFAULT_STORE_CATEGORY_TREE) {
+    const parent = await prisma.commonStoreCategory.create({
+      data: {
+        code: root.code,
+        name: root.name,
+        sort: root.sort,
+        parentId: null,
+        status: 'ACTIVE',
+      },
+    });
+    categoryByCode.set(root.code, parent);
+    for (const child of root.children) {
+      const row = await prisma.commonStoreCategory.create({
+        data: {
+          code: child.code,
+          name: child.name,
+          sort: child.sort,
+          parentId: parent.id,
+          status: 'ACTIVE',
+        },
+      });
+      categoryByCode.set(child.code, row);
+    }
+  }
+  const categories = [
+    categoryByCode.get('HOTPOT')!,
+    categoryByCode.get('LOCAL')!,
+  ];