优化: P0 shell stdout修复+灵感路由+3工具新增+ai-md全局CSS+import路径统一

P0 修复:
- B-260615-37: shell.rs 补 Stdio::piped() 修复 run_command stdout/stderr 恒空
  (tokio 默认 inherit 导致 wait_with_output 读不到 pipe)

P1 功能:
- B-260615-36: 路由加 /ideas/:id + Ideas.vue 接 route.params.id + watch
  (修复项目详情点「来源灵感」跳空白页)
- F-260615-08: 新增 file_info 工具(元信息: exists/size/lines/binary/dir)
- F-260615-09: 新增 append_file 工具(追加写入, RiskLevel::Medium)
- F-260615-12: 新增 search_files 工具(文件名 glob 搜索,递归,限50条)
  + search_files_recursive 辅助函数 + i18n zh/en 3工具×2命名空间

DRY/重构:
- CR-260615-09: .ai-md 样式5份→全局 src/styles/ai-md.css(75行)
  AiChat.vue 删71行重复 + main.ts 引入 + typo修正(.a-md→.ai-md)
- 全量 import 路径统一为 @/ 别名(stores/composables/views ~28文件)
  vite.config.ts 加 resolve.alias.{ '@': '/src' }
- i18n 批量改进: store error fallback 11处中文→t() / ToolCard ARG_LABEL
  / useAiSend queue文案 / Dashboard 空态 / Ideas.vue null守卫
- cargo check 0 error / vue-tsc 0 error

src/composables/ai/useAiConversations.ts

@@ -4,12 +4,12 @@
 //! - 多处调 useAiEvents.notifyConversationChanged
 //! - newConversation/switchConversation 写 appSettings 持久化活跃会话 id
 
-import { aiApi } from '../../api'
-import { useAppSettingsStore } from '../../stores/appSettings'
-import { state } from '../../stores/ai'
+import { aiApi } from '@/api'
+import { useAppSettingsStore } from '@/stores/appSettings'
+import { state } from '@/stores/ai'
 import { notifyConversationChanged } from './useAiEvents'
 import { persistUiState } from './useAiPanel'
-import type { AiToolCallInfo } from '../../api/types'
+import type { AiToolCallInfo } from '@/api/types'
 
 const appSettings = useAppSettingsStore()
 

src/composables/ai/useAiEvents.ts

@@ -10,15 +10,15 @@
 //! - nextMsgId 已下沉到 aiShared(原为本模块导出,useAiStream 亦依赖之构成循环依赖,故抽出)
 
 import { listen, emit } from '@tauri-apps/api/event'
-import { aiApi } from '../../api'
-import { useAppSettingsStore } from '../../stores/appSettings'
-import { state } from '../../stores/ai'
+import { aiApi } from '@/api'
+import { useAppSettingsStore } from '@/stores/appSettings'
+import { state } from '@/stores/ai'
 import i18n from '@/i18n'
 import { nextMsgId } from './aiShared'
 import { resetStreamWatchdog, clearStreamWatchdog } from './useAiStream'
 import { drainQueue } from './useAiSend'
 import { loadConversations } from './useAiConversations'
-import type { AiChatEvent, AiToolCallInfo } from '../../api/types'
+import type { AiChatEvent, AiToolCallInfo } from '@/api/types'
 
 // composable 内非组件上下文(无 setup),用 vue-i18n 全局实例的 t 而非 useI18n()。
 // 通过 any 中转规避 vue-i18n 深度 message schema 泛型导致的 TS2589(类型实例化过深)。

src/composables/ai/useAiPanel.ts

@@ -9,9 +9,9 @@
 //! - togglePanel/toggleMaximize/toggleArchivedFold/toggleSidebar 调 persistUiState
 
 import { watch } from 'vue'
-import { aiApi } from '../../api'
-import { useAppSettingsStore } from '../../stores/appSettings'
-import { state } from '../../stores/ai'
+import { aiApi } from '@/api'
+import { useAppSettingsStore } from '@/stores/appSettings'
+import { state } from '@/stores/ai'
 
 const appSettings = useAppSettingsStore()
 

src/composables/ai/useAiSend.ts

@@ -10,10 +10,10 @@
 //! - drainQueue 在 sendMessage 完成后由 handleEvent(AiCompleted) 调用 — 故 drainQueue 必须为模块级 export
 
 import { invoke } from '@tauri-apps/api/core'
-import { aiApi } from '../../api'
-import { useAppSettingsStore } from '../../stores/appSettings'
-import { state } from '../../stores/ai'
-import i18n from '../../i18n'
+import { aiApi } from '@/api'
+import { useAppSettingsStore } from '@/stores/appSettings'
+import { state } from '@/stores/ai'
+import i18n from '@/i18n'
 import { resetStreamWatchdog, clearStreamWatchdog } from './useAiStream'
 import { startListener, findToolCall } from './useAiEvents'
 import { nextMsgId } from './aiShared'

src/composables/ai/useAiStream.ts

@@ -11,7 +11,7 @@
 //! 依赖:nextMsgId 取自 aiShared(原从 useAiEvents 取,构成 useAiEvents ↔ useAiStream
 //! 循环依赖;下沉到 aiShared 后本模块不再 import useAiEvents,环消除)
 
-import { state } from '../../stores/ai'
+import { state } from '@/stores/ai'
 import i18n from '@/i18n'
 import { nextMsgId } from './aiShared'
 

src/composables/ai/useAiWindow.ts

@@ -8,7 +8,7 @@
 //! - reattachPanel/detachPanel 调 useAiPanel.persistUiState
 
 import { invoke } from '@tauri-apps/api/core'
-import { state } from '../../stores/ai'
+import { state } from '@/stores/ai'
 import { nextMsgId } from './aiShared'
 import { persistUiState } from './useAiPanel'