优化: UI/UX遗留批(审计/AI命令层/前端组件,会话前基线收尾)

- AuditLog +298(筛选/详情/i18n)+ audit 后端 record/mod

- AI 命令层:generate_image +81 / fetch_url / fetch_search / skills / tool_registry / tools/file / provider / conversation

- 前端组件:AiChat/TopBar/ConversationSidebar/GitChanges/ApprovalPopup/Dashboard/ProjectDetail 等 30+ + composables + i18n

- 诊断文档: aichat历史会话实证诊断-2026-08-04 + project_soft_delete 测试

src/views/ApprovalPopup.vue

@@ -513,7 +513,7 @@ function onDragEnd() { isDragging.value = false }
   border: 0.5px solid var(--df-accent);
   border-left: 3px solid var(--df-accent);
   border-radius: var(--df-radius-md);
-  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(123, 111, 240, 0.2);
+  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--df-accent-soft);
   overflow: hidden;
   user-select: none;
 }
@@ -554,7 +554,7 @@ function onDragEnd() { isDragging.value = false }
   background: var(--df-danger);
   color: #fff;
   font-size: 9px;
-  font-weight: 700;
+  font-weight: 500;
   line-height: 16px;
   text-align: center;
   border: 1.5px solid var(--df-bg-card);
@@ -730,7 +730,7 @@ function onDragEnd() { isDragging.value = false }
   border-radius: var(--df-radius-xs, 3px);
   font-family: var(--df-font-mono);
   font-size: 9px;
-  font-weight: 700;
+  font-weight: 500;
   line-height: 1;
   background: rgba(0, 0, 0, 0.18);
   opacity: 0.7;