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/mappers/solutionMapper.ts

@@ -0,0 +1,76 @@
+/**
+ * 将 Directus 返回的 SolutionType 数据转换为 SolutionTypeView 视图模型
+ *
+ * @param raw: 原始的 SolutionType 数据
+ * @returns 转换后的 SolutionTypeView 对象
+ *
+ * ---
+ *
+ *  @example
+ *  const view = toSolutionTypeView(rawSolutionType);
+ */
+export function toSolutionTypeView(raw: SolutionType): SolutionTypeView {
+  const trans = raw?.translations?.[0];
+
+  return {
+    id: raw.id,
+    name: trans?.name ?? '',
+    sort: raw?.sort ?? 999,
+  };
+}
+
+/**
+ * 将 Directus 返回的 Solution 数据转换为 SolutionListView 视图模型
+ *
+ * @param raw: 原始的 Solution 数据
+ * @returns 转换后的 SolutionListView 对象
+ *
+ * ---
+ *
+ * @example
+ * const view = toSolutionListView(rawSolution);
+ */
+export function toSolutionListView(raw: Solution): SolutionListView {
+  const trans = raw.translations?.[0];
+
+  const type = isObject<SolutionType>(raw.type)
+    ? toSolutionTypeView(raw.type)
+    : ({
+        id: -1,
+        name: 'uncategory',
+        sort: 999,
+      } satisfies SolutionTypeView);
+
+  const cover = isObject<DirectusFile>(raw.cover) ? (raw?.cover.id ?? '') : '';
+
+  return {
+    id: raw.id,
+    title: trans?.title ?? '',
+    summary: trans?.summary ?? '',
+    solution_type: type,
+    cover: cover,
+  };
+}
+
+/**
+ * 将 Directus 返回的 Solution 数据转换为 SolutionView 视图模型
+ *
+ * @param raw: 原始的 Solution 数据
+ * @returns 转换后的 SolutionView 对象
+ *
+ * ---
+ *
+ * @example
+ * const view = toSolutionView(rawSolution);
+ */
+export function toSolutionView(raw: Solution): SolutionView {
+  const trans = raw.translations?.[0];
+
+  return {
+    id: raw.id,
+    title: trans?.title ?? '',
+    summary: trans?.summary ?? '',
+    content: trans?.content ?? '',
+    createAt: raw?.create_at ?? '',
+  };
+}