refactor: 将Data到ViewModel的转换由App转移至Server端

- 将逻辑转移到Server端后，简化前端逻辑

server/utils/search-converters.ts

@@ -0,0 +1,36 @@
+/**
+ * 各索引对应的转换函数表
+ */
+export const converters: {
+  [K in keyof MeiliIndexMap]: (item: MeiliIndexMap[K]) => SearchItemView;
+} = {
+  products: (item: MeiliIndexMap['products']): SearchItemView => ({
+    id: item.id,
+    type: 'product',
+    title: item.name,
+    summary: item.summary,
+  }),
+
+  solutions: (item: MeiliIndexMap['solutions']): SearchItemView => ({
+    id: item.id,
+    type: 'solution',
+    title: item.title,
+    summary: item.summary,
+  }),
+
+  questions: (item: MeiliIndexMap['questions']): SearchItemView => ({
+    id: item.id,
+    type: 'question',
+    title: item.title,
+    summary: item.content.slice(0, 100) + '...',
+  }),
+
+  product_documents: (
+    item: MeiliIndexMap['product_documents']
+  ): SearchItemView => ({
+    id: item.fileUUID || item.id,
+    type: 'document',
+    title: item.title,
+    summary: '',
+  }),
+};