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/i18n/en/auditLog.ts

@@ -50,5 +50,14 @@ export default {
       human: 'Human',
       auto: 'Auto',
     },
+    // Tab navigation
+    tabAudit: 'Approval History',
+    tabConversations: 'Conversations',
+    // Conversation history
+    convEmpty: 'No conversations yet',
+    convLoading: 'Loading conversations…',
+    convTruncated: 'Content truncated (expand to view full conversation)',
+    convSelectHint: '← Select a conversation to view full interaction log',
+    convReasoning: 'Reasoning (thinking)',
   },
 }