style(admin): 调整侧边栏宽度和文本样式

- 将问题库侧边栏默认宽度从525px调整为535px
- 统一标签页和分类树中的文本字号大小
- 优化文件夹图标的显示尺寸

apps/admin/src/layouts/modules/global-tab/index.vue

@@ -214,7 +214,7 @@ init()
             <template #prefix>
               <SvgIcon :icon="tab.icon" :local-icon="tab.localIcon" class="inline-block align-text-bottom text-16px" />
             </template>
-            <div class="max-w-240px ellipsis-text">
+            <div class="max-w-240px ellipsis-text text-14px">
               {{ tab.label }}
             </div>
           </PageTab>

apps/admin/src/views/question-store/index.vue

@@ -8,7 +8,7 @@ defineOptions({ name: 'QuestionStore' })
 const currentCategory = ref<any>(null)
 
 // Resize logic
-const siderWidth = ref(525)
+const siderWidth = ref(535)
 const LOCAL_STORAGE_KEY = 'question-store-sider-width'
 const minWidth = 300
 const maxWidth = 800

apps/admin/src/views/question-store/modules/CategoryTree.vue

@@ -231,10 +231,10 @@ onMounted(() => {
       >
         <div class="flex items-center gap-2 overflow-hidden">
           <SvgIcon
-            icon="carbon:folder" class="flex-shrink-0 text-lg"
+            icon="carbon:folder" class="flex-shrink-0 text-sm"
             :class="selectedKey === item.Id ? 'text-primary' : 'text-gray-400'"
           />
-          <span class="truncate font-medium">{{ item.Name }} - {{ item.QuestionContent }}</span>
+          <span class="truncate text-16px font-medium">{{ item.Name }} - {{ item.QuestionContent }}</span>
         </div>
 
         <!-- Action Buttons -->