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/components/ai/CIStatus.vue

@@ -118,6 +118,6 @@ onMounted(async () => {
 .ci-item--success { border-color: var(--df-success); }
 .ci-item--failure { border-color: var(--df-danger); }
 .ci-item--pending { border-color: var(--df-warning); }
-.ci-item-icon { font-size: 10px; font-weight: 700; }
+.ci-item-icon { font-size: 10px; font-weight: 500; }
 .ci-item:hover { opacity: 0.8; }
 </style>