重构: 前端 composable 拆分+详情页 Markdown 渲染+流式 memo+状态同步+bug 修复

- composables/useMarkdown 抽(AiChat 复用)+ai/* 流式核心+useAiSend catch 回滚 user msg(B-21)+useAiStream 超时文案(B-03)+useAiConversations 切换 token(FR-R1)
- views/TaskDetail 新建(F-02)+描述 md+mdReady 响应式+字段同行布局(B-24/31)
- views/ProjectDetail 多选审批 UI(F-01)+描述 md+mdReady+字段同行(B-25/31)
- views/Ideas+Knowledge 描述 md+mdReady(B-25)
- views/Tasks 项目切换联动(B-29)+task 详情跳转
- components/AiChat toast 失败提示(B-20)+流式块级 memo(ARC-08)+clean UI(AR-7)+stop 兜底(AR-5)
- components/ToolCard 审批卡片可读化(AR-3)
- stores useAiStore barrel(ARC-04)+del settings mock(ARC-01)+approve options(R-PD-5)
- i18n aiTool/nav 中英对称(AR-3/9)+删 nav.decisions 死链(ARC-02)
- router /tasks/:id(F-02)+global.css selection 可见(R-260615-01)+api task detail+App 删 decisions nav

src/i18n/en/aiTool.ts

@@ -16,6 +16,17 @@ export default {
     dirFallback: 'List Directory',
     writePrefix: 'Write',
     writeFallback: 'Write File',
+    // CRUD tool display names (delete/restore/purge/update_project resolve project name by id; fallback when no id or unresolved)
+    deletePrefix: 'Delete Project',
+    deleteFallback: 'Delete Project',
+    restorePrefix: 'Restore Project',
+    restoreFallback: 'Restore Project from Trash',
+    purgePrefix: 'Purge Project',
+    purgeFallback: 'Purge Project',
+    updatePrefix: 'Update Project',
+    updateFallback: 'Update Project',
+    createTask: 'Create Task',
+    createProject: 'Create Project',
 
     taskCount: '{n} tasks',
     projectCount: '{n} projects',

src/i18n/en/nav.ts

@@ -5,7 +5,6 @@ export default {
     projects: 'Projects',
     tasks: 'Tasks',
     knowledge: 'Knowledge',
-    decisions: 'Decisions',
     settings: 'Settings',
     workspace: 'Workspace',
     traceability: 'Traceability',

src/i18n/zh-CN/aiTool.ts

@@ -17,6 +17,17 @@ export default {
     dirFallback: '列出目录',
     writePrefix: '写入',
     writeFallback: '写入文件',
+    // CRUD 类工具显示名(delete/restore/purge/update_project 按 id 解析项目名;无 id 或解析失败走 fallback)
+    deletePrefix: '删除项目',
+    deleteFallback: '删除项目',
+    restorePrefix: '恢复项目',
+    restoreFallback: '从回收站恢复项目',
+    purgePrefix: '彻底删除项目',
+    purgeFallback: '彻底删除项目',
+    updatePrefix: '更新项目',
+    updateFallback: '更新项目',
+    createTask: '创建任务',
+    createProject: '创建项目',
 
     // completed 结果摘要(header 折叠态可见)
     taskCount: '{n} 项任务',

src/i18n/zh-CN/nav.ts

@@ -5,7 +5,6 @@ export default {
     projects: '项目',
     tasks: '任务',
     knowledge: '知识库',
-    decisions: '决策',
     settings: '设置',
     workspace: '工作区',
     traceability: '追溯',