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/stores/ai.ts

@@ -20,7 +20,7 @@
 //! - state 为模块级单例,全应用共享同一引用
 
 import { reactive, watch } from 'vue'
-import type { AiChatEvent, AiConversationSummary, AiMessage, AiProviderConfig, AiToolCallInfo, SkillInfo } from '../api/types'
+import type { AiChatEvent, AiConversationSummary, AiMessage, AiProviderConfig, AiToolCallInfo, SkillInfo } from '@/api/types'
 
 /**
  * 单对话 messages 软上限(滚动淘汰)。
@@ -36,14 +36,14 @@ import type { AiChatEvent, AiConversationSummary, AiMessage, AiProviderConfig, A
 const MESSAGE_CAP = 200
 /** push 单次增量上限(用于区分 push 增长 vs 整体替换)。useAiSend 连续 push user+ai=2,其余事件 push 1。 */
 const MESSAGE_PUSH_BURST = 2
-import { useAiEvents } from '../composables/ai/useAiEvents'
-import { useAiStream } from '../composables/ai/useAiStream'
-import { useAiSend } from '../composables/ai/useAiSend'
-import { useAiConversations } from '../composables/ai/useAiConversations'
-import { useAiWindow } from '../composables/ai/useAiWindow'
-import { useAiPanel } from '../composables/ai/useAiPanel'
+import { useAiEvents } from '@/composables/ai/useAiEvents'
+import { useAiStream } from '@/composables/ai/useAiStream'
+import { useAiSend } from '@/composables/ai/useAiSend'
+import { useAiConversations } from '@/composables/ai/useAiConversations'
+import { useAiWindow } from '@/composables/ai/useAiWindow'
+import { useAiPanel } from '@/composables/ai/useAiPanel'
 
-/// 模块级单例 state — 全应用共享(composables 通过 `import { state } from '../../stores/ai'` 取用)
+/// 模块级单例 state — 全应用共享(composables 通过 `import { state } from '@/stores/ai'` 取用)
 export const state = reactive({
   messages: [] as AiMessage[],
   streaming: false,

src/stores/knowledge.ts

@@ -1,5 +1,5 @@
 import { reactive, computed } from 'vue'
-import { knowledgeApi } from '../api'
+import { knowledgeApi } from '@/api'
 import i18n from '@/i18n'
 import type {
   KnowledgeRecord,
@@ -8,7 +8,7 @@ import type {
   CreateKnowledgeInput,
   UpdateKnowledgeInput,
   KnowledgeConfig,
-} from '../api/types'
+} from '@/api/types'
 
 // composable 外全局 i18n 实例(非 setup 上下文)
 const t = ((i18n as any).global.t as (k: string) => string).bind((i18n as any).global)

src/stores/project.ts

@@ -5,7 +5,7 @@ import { createTasksStore } from './project/tasks'
 import { createIdeasStore } from './project/ideas'
 import { createWorkflowStore } from './project/workflow'
 import { state, clearError } from './project/state'
-import type { DfDataChangedPayload } from '../api/types'
+import type { DfDataChangedPayload } from '@/api/types'
 
 // ── barrel 组合器(零行为变更,纯重构) ──
 //

src/stores/project/ideas.ts

@@ -1,4 +1,4 @@
-import { ideaApi } from '../../api'
+import { ideaApi } from '@/api'
 import i18n from '@/i18n'
 import { state } from './state'
 

src/stores/project/projects.ts

@@ -1,5 +1,5 @@
-import { projectApi } from '../../api'
-import type { ImportProjectInput } from '../../api/project'
+import { projectApi } from '@/api'
+import type { ImportProjectInput } from '@/api/project'
 import i18n from '@/i18n'
 import { state, clearError } from './state'
 

src/stores/project/tasks.ts

@@ -1,4 +1,4 @@
-import { taskApi } from '../../api'
+import { taskApi } from '@/api'
 import i18n from '@/i18n'
 import { state } from './state'
 

src/stores/project/workflow.ts

@@ -1,4 +1,4 @@
-import { workflowApi } from '../../api'
+import { workflowApi } from '@/api'
 import i18n from '@/i18n'
 import { state, _eventUnlisten, setEventUnlisten } from './state'