重构: 跨模块样式DRY收口+审批列表增强+灵感模块优化

- 全局样式收口: page-header/btn/modal/filter-bar/back-link/empty-state
  等通用类从12个视图的scoped重复定义提取到global.css/components.css
- 审批列表增强: 筛选栏(状态/风险/工具搜索)+行展开查看完整参数结果
  +审批耗时显示+刷新spinner+硬编码颜色全部改用CSS变量
- 灵感模块: scoreTier统一评分阈值+score-bar/assessment-badge提取全局
  +statusLabelKey消除重复+i18n状态文案对齐+eval-report--muted统一空态
- Dashboard: df-panel/df-link提取全局(修scoped不渗透)+统计卡可点击跳转
  +活跃项目面板只显示active状态+灵感列表按分数排序+刷新spinner
- 修复: intent.rs tool_type类型对齐(newtype)+ToolCardList补ai-btn定义
  +SkillMention/ImageInput样式不渗透修复(提取全局)

src/components/ai/MentionPopover.vue

@@ -38,7 +38,7 @@ const emit = defineEmits<{
 
 <template>
   <!-- UX-10 §1.4: @ 实体引用浮层(@ 触发,选中插入 [类型:名] 标记,架构复用技能 popover) -->
-  <div class="ai-skill-popover ai-mention-popover">
+  <div class="ai-skill-popover">
     <div v-if="!mentionItems.length" class="ai-skill-empty">
       {{ mentionTotal ? $t('aiChat.mentionNoMatch') : $t('aiChat.mentionEmpty') }}
     </div>
@@ -65,34 +65,8 @@ const emit = defineEmits<{
 </template>
 
 <style scoped>
-/* ── UX-10 §1.4: @ 实体引用浮层(复用 .ai-skill-popover 容器,仅新增组标题/类型标签) ── */
-.ai-mention-popover {
-  position: absolute;
-  bottom: calc(100% + 4px);
-  left: 0;
-  right: 0;
-  max-height: 240px;
-  overflow-y: auto;
-  background: var(--df-bg-card);
-  border: 0.5px solid var(--df-border);
-  border-radius: var(--df-radius);
-  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
-  z-index: 20;
-}
-.ai-skill-item {
-  display: flex;
-  flex-direction: column;
-  gap: 2px;
-  padding: 6px 10px;
-  cursor: pointer;
-  font-size: 12px;
-}
-.ai-skill-item-row { display: flex; align-items: center; gap: 8px; min-width: 0; }
-.ai-skill-item--active,
-.ai-skill-item:hover {
-  background: color-mix(in srgb, var(--df-accent) 14%, transparent);
-}
-.ai-skill-empty { padding: 8px 12px; color: var(--df-text-dim); opacity: 0.7; font-size: 12px; }
+/* ── UX-10 §1.4: @ 实体引用浮层特定样式(复用全局 .ai-skill-popover/.ai-skill-item,仅新增 mention 专有) ──
+   .ai-skill-popover/.ai-skill-item/.ai-skill-empty 已提取到 styles/components.css 全局 */
 .ai-mention-group {
   padding: 4px 10px 2px;
   font-size: 10px;