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/project/DependencyGraph.vue

@@ -337,30 +337,9 @@ onBeforeUnmount(() => {
   opacity: 0.4;
 }
 
-.btn {
-  padding: 4px 12px;
-  border: none;
-  border-radius: var(--df-radius-sm, 4px);
-  font-size: 12px;
-  cursor: pointer;
-  transition: all 0.15s;
-}
-
-.btn-ghost {
-  background: transparent;
-  color: var(--df-text-secondary);
-  border: 0.5px solid var(--df-border);
-}
-
-.btn-ghost:hover {
-  background: var(--df-bg);
-  color: var(--df-text);
-}
-
-.btn-sm {
-  padding: 4px 10px;
-  font-size: 11px;
-}
+/* 按钮基础样式 (.btn / .btn-ghost / .btn-sm / .btn-primary) 已收敛至 global.css */
+/* 依赖图工具栏紧凑,覆 padding/font-size 避免按钮变大 */
+.btn { padding: 4px 12px; font-size: 12px; }
 
 /* 添加依赖弹窗 */
 .dep-graph__modal-overlay {
@@ -395,7 +374,4 @@ onBeforeUnmount(() => {
 .dep-graph__modal-actions {
   display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px;
 }
-.btn-primary { background: var(--df-accent); color: #fff; }
-.btn-primary:hover { filter: brightness(1.1); }
-.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
 </style>