refactor: 重构 API 层目录结构 & 样式模块化拆分

- API 层按业务域拆分（api/auth/, api/file/, api/system/*）
- 类型定义从 types/api/ 移入对应 api 模块内（就近原则）
- 公共类型统一为 api/common.ts，移除冗余类型重导出
- 样式文件按职责拆分（base/, layout/, vendors/），移除 common.scss
- 移除失效的单元测试文件

src/components/CURD/types.ts

@@ -4,7 +4,7 @@ import type PageContent from "./PageContent.vue";
 import type PageModal from "./PageModal.vue";
 import type PageSearch from "./PageSearch.vue";
 import type { CSSProperties } from "vue";
-import type { PageResult } from "@/types/api/common";
+import type { PageResult } from "@/api/common";
 
 export type PageSearchInstance = InstanceType<typeof PageSearch>;
 export type PageContentInstance = InstanceType<typeof PageContent>;

src/components/NoticeDropdown/useNotice.ts

@@ -2,7 +2,7 @@
  * 通知中心逻辑
  */
 import { ref, onMounted, onBeforeUnmount } from "vue";
-import type { NoticeItem, NoticeDetail, NoticeQueryParams } from "@/types/api";
+import type { NoticeItem, NoticeDetail, NoticeQueryParams } from "@/api/system/notice";
 import NoticeAPI from "@/api/system/notice";
 import { useSse } from "@/composables";
 import router from "@/router";

src/components/Pagination/index.vue

@@ -1,6 +1,6 @@
 <template>
   <el-scrollbar>
-    <div :class="{ hidden: hidden }" class="pagination">
+    <div :class="{ hidden: hidden }" class="p-3 flex justify-end">
       <el-pagination
         v-model:current-page="currentPage"
         v-model:page-size="pageSize"
@@ -79,13 +79,3 @@ function handleCurrentChange(val: number) {
   emit("pagination", { page: val, limit: pageSize.value });
 }
 </script>
-
-<style lang="scss" scoped>
-.pagination {
-  padding: 12px;
-
-  &.hidden {
-    display: none;
-  }
-}
-</style>

src/components/Upload/FileUpload.vue

@@ -54,7 +54,7 @@ import {
 } from "element-plus";
 
 import FileAPI from "@/api/file";
-import type { FileInfo } from "@/types/api";
+import type { FileInfo } from "@/api/file";
 
 const props = defineProps({
   /**

src/components/Upload/MultiImageUpload.vue

@@ -41,7 +41,7 @@
 <script setup lang="ts">
 import { UploadRawFile, UploadRequestOptions, UploadUserFile } from "element-plus";
 import FileAPI from "@/api/file";
-import type { FileInfo } from "@/types/api";
+import type { FileInfo } from "@/api/file";
 
 const props = defineProps({
   /**

src/components/Upload/SingleImageUpload.vue

@@ -34,7 +34,7 @@
 <script setup lang="ts">
 import { UploadRawFile, UploadRequestOptions } from "element-plus";
 import FileAPI from "@/api/file";
-import type { FileInfo } from "@/types/api";
+import type { FileInfo } from "@/api/file";
 
 const props = defineProps({
   /**