优化: AI Chat 体验全面升级(图标/审批/目标提取/窗口管理)

- AI 入口图标:灯泡→星花 sparkles+发光,与灵感入口区分
- 目标提取根本性改造:用户消息规则→工具调用推理(infer_goal_from_tool_calls)
  - Vec<String>→Vec<GoalEntry>(text+status),active→completed 状态流转
  - 多条/轮提取,system_prompt 仅注入 active 目标
  - 代码拆分到 helpers.rs(解决 brace 嵌套致 pub(crate) 不可见)
- 审批修复:patch_file 全档位自动放行,批量审批防抖,乐观更新竞态保护
- 审批通知浮层:全局右上角 ApprovalOverlay,窗口遮挡时可见
- 设置导入导出移除:价值低占用空间,跨设备同步建议复制 SQLite
- 分离窗口默认置顶+置顶状态持久化(刷新后保持)
- header 菜单聚合:清空/压缩上下文收入 ... popout
- LLM 文字重叠防御:delta 重复检测+丢弃
- 置顶图标:星→大头针 pushpin
- 文档/注释更新:过期 Vec<String>/chat.rs 提取描述修正

src/components/settings/SettingsImportExport.vue

@@ -1,233 +0,0 @@
-<template>
-  <!-- ═══ 设置导入 / 导出(阶段6 UX 重构)═══
-       导出:聚合 appSettings 全 KV(已解析)+ 知识库配置 → JSON 文件下载
-            (默认不含 provider keyring 密钥,scope 标注)
-       导入:input[type=file] 读 JSON → 解析校验 → useConfirm 覆盖确认
-            → 逐 KV settings.set + knowledgeApi.saveConfig → toast 提示
-       复用 settings.css 全局 .btn/.btn-primary/.btn-ghost/.btn-sm;
-       confirm/toast 由父 Settings.vue 经 props 注入,共用壳层弹层与 toast。 -->
-  <div class="settings-io">
-    <button class="btn btn-ghost btn-sm" :disabled="busy" @click="onExport">
-      ⬆ {{ $t('settings.export') }}
-    </button>
-    <button class="btn btn-ghost btn-sm" :disabled="busy" @click="triggerImport">
-      ⬇ {{ $t('settings.import') }}
-    </button>
-    <!-- 隐藏的文件选择器(点击「导入」触发) -->
-    <input
-      ref="fileInputRef"
-      type="file"
-      accept="application/json,.json"
-      class="file-input"
-      @change="onFilePicked"
-    />
-  </div>
-</template>
-
-<script setup lang="ts">
-// ============================================================
-// 阶段6 导入 / 导出 — 纯前端实现
-// ------------------------------------------------------------
-// 导出:从 appSettings.cache 取已解析的全 KV(类型正确,非后端原始 JSON 字符串),
-//   叠加 knowledgeApi.getConfig(),组成 {metadata, appSettings, knowledge} JSON。
-//   用 Blob + a[download] 下载(不依赖 Tauri fs/dialog 权限)。
-// 导入:<input type=file> + FileReader.readAsText → 解析 → metadata.scope 校验
-//   → confirmDialog 覆盖确认 → appSettings.set 逐 KV + knowledgeApi.saveConfig
-//   → toast 反馈(并发/轮次需重启或下次对话生效)。
-// 安全:scope 仅含 appSettings + 知识库配置,默认不含 provider keyring 密钥
-//   (密钥在独立 store,本流程不触及)。
-// ============================================================
-
-import { ref } from 'vue'
-import { useI18n } from 'vue-i18n'
-import { useAppSettingsStore } from '@/stores/appSettings'
-import { knowledgeApi } from '@/api/knowledge'
-import type { KnowledgeConfig } from '@/api/types'
-
-const props = defineProps<{
-  /** 覆盖确认弹层(复用 Settings.vue 壳层 confirmState) */
-  confirmDialog: (msg: string, dangerLabel?: string) => Promise<boolean>
-  /** toast 反馈通道(复用 Settings.vue 壳层 showToast) */
-  toast: (msg: string, type?: 'error' | 'warning' | 'info') => void
-}>()
-
-const { t } = useI18n()
-const appSettings = useAppSettingsStore()
-
-const busy = ref(false)
-const fileInputRef = ref<HTMLInputElement | null>(null)
-
-/** 导出的 JSON 备份载荷结构 */
-interface SettingsBackup {
-  metadata: {
-    version: number
-    date: string
-    scope: 'appSettings+knowledge'
-    app: string
-  }
-  appSettings: Record<string, unknown>
-  knowledge: KnowledgeConfig | null
-}
-
-/** 当前日期戳(用于导出文件名:devflow-settings-YYYYMMDD.json) */
-function dateStamp(): string {
-  const d = new Date()
-  const y = d.getFullYear()
-  const m = String(d.getMonth() + 1).padStart(2, '0')
-  const day = String(d.getDate()).padStart(2, '0')
-  return `${y}${m}${day}`
-}
-
-// ============================================================
-// 导出
-// ============================================================
-async function onExport() {
-  if (busy.value) return
-  busy.value = true
-  try {
-    // appSettings.cache 为已解析(反序列化)值的响应式缓存 —— 取其快照,
-    // 保证导出的 JSON 值类型与运行时一致(非后端原始 JSON 字符串)
-    const allKv: Record<string, unknown> = { ...appSettings.cache }
-    // 知识库配置独立 IPC 读取(不在 app_settings 表)
-    let knowledge: KnowledgeConfig | null = null
-    try {
-      knowledge = await knowledgeApi.getConfig()
-    } catch (e) {
-      // 知识库读取失败不阻断导出(appSettings 仍可导),仅 console 记录
-      console.error('[设置导出] 读取知识库配置失败:', e)
-    }
-
-    const payload: SettingsBackup = {
-      metadata: {
-        version: 1,
-        date: new Date().toISOString(),
-        scope: 'appSettings+knowledge',
-        app: 'devflow',
-      },
-      appSettings: allKv,
-      knowledge,
-    }
-
-    const json = JSON.stringify(payload, null, 2)
-    // Blob + a[download] 下载:webview 内原生支持,无需 Tauri fs 权限
-    const blob = new Blob([json], { type: 'application/json' })
-    const url = URL.createObjectURL(blob)
-    const a = document.createElement('a')
-    a.href = url
-    a.download = `devflow-settings-${dateStamp()}.json`
-    document.body.appendChild(a)
-    a.click()
-    document.body.removeChild(a)
-    URL.revokeObjectURL(url)
-  } catch (e) {
-    props.toast(t('settings.exportFail', { msg: errMsg(e) }), 'error')
-  } finally {
-    busy.value = false
-  }
-}
-
-// ============================================================
-// 导入
-// ============================================================
-function triggerImport() {
-  // 重置 value 以便「选同一文件」也能再次触发 change(否则 onChange 不再回调)
-  if (fileInputRef.value) fileInputRef.value.value = ''
-  fileInputRef.value?.click()
-}
-
-async function onFilePicked(e: Event) {
-  const input = e.target as HTMLInputElement
-  const file = input.files?.[0]
-  if (!file) return
-
-  if (busy.value) return
-  busy.value = true
-  try {
-    const text = await readFileAsText(file)
-    const parsed = parseJsonLoose(text)
-    if (!parsed || !isSettingsBackup(parsed)) {
-      props.toast(t('settings.importInvalidJson'), 'error')
-      return
-    }
-
-    // 覆盖确认(复用壳层 confirmState 弹层;用户取消则放弃)
-    const ok = await props.confirmDialog(t('settings.importConfirm'), '')
-    if (!ok) return
-
-    // 逐 KV 写回 appSettings(经 store.set 同时更新缓存与 debounced 落库)
-    const kv = parsed.appSettings ?? {}
-    for (const [k, v] of Object.entries(kv)) {
-      await appSettings.set(k, v)
-    }
-    // 知识库配置写回(独立 IPC)
-    if (parsed.knowledge) {
-      await knowledgeApi.saveConfig(parsed.knowledge)
-    }
-
-    props.toast(t('settings.importSuccess'), 'info')
-  } catch (e) {
-    props.toast(t('settings.importFail', { msg: errMsg(e) }), 'error')
-  } finally {
-    busy.value = false
-  }
-}
-
-// ============================================================
-// 工具
-// ============================================================
-
-/** FileReader 读文本(替代 file.text() 以兼容更早 webview) */
-function readFileAsText(file: File): Promise<string> {
-  return new Promise((resolve, reject) => {
-    const reader = new FileReader()
-    reader.onload = () => resolve(String(reader.result ?? ''))
-    reader.onerror = () => reject(reader.error ?? new Error('read error'))
-    reader.readAsText(file)
-  })
-}
-
-/** 宽松 JSON.parse:失败返回 null(调用方据此报「格式不符」) */
-function parseJsonLoose(text: string): unknown {
-  try {
-    return JSON.parse(text)
-  } catch {
-    return null
-  }
-}
-
-/** 结构校验:必须含 metadata.scope === 'appSettings+knowledge' 且 version 为数 */
-function isSettingsBackup(obj: unknown): obj is SettingsBackup {
-  if (typeof obj !== 'object' || obj === null) return false
-  const o = obj as Record<string, unknown>
-  const meta = o.metadata as Record<string, unknown> | undefined
-  if (!meta || meta.scope !== 'appSettings+knowledge') return false
-  if (typeof meta.version !== 'number') return false
-  // appSettings 必须为对象(允许空对象);knowledge 允许 null 或对象
-  if (typeof o.appSettings !== 'object' || o.appSettings === null) return false
-  return true
-}
-
-/** 提取错误信息文案(兜底 Error.message 或 String(e)) */
-function errMsg(e: unknown): string {
-  if (e instanceof Error) return e.message
-  return String(e)
-}
-</script>
-
-<style scoped>
-/* 导入导出按钮组:横向排列,复用全局 .btn/.btn-ghost/.btn-sm */
-.settings-io {
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-  width: 100%;
-}
-/* 隐藏文件选择器(仅以编程方式 click 触发) */
-.file-input {
-  position: absolute;
-  width: 0;
-  height: 0;
-  opacity: 0;
-  pointer-events: none;
-}
-</style>

src/components/settings/SettingsNav.vue

@@ -37,11 +37,6 @@
         <span class="nav-label">{{ $t(cat.labelKey) }}</span>
       </li>
     </ul>
-
-    <!-- 底部导入导出占位(阶段6 实现) -->
-    <div class="nav-footer-slot">
-      <slot name="footer" />
-    </div>
   </nav>
 </template>
 
@@ -251,8 +246,6 @@ defineExpose({
 .nav-icon { font-size: 16px; line-height: 1; }
 .nav-label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
 
-.nav-footer-slot { flex-shrink: 0; margin-top: auto; }
-
 /* ===== 窄屏响应式:nav 折叠为横向 tab(@media 由父 Settings.vue 控制,
    此处仅保证横向模式下 nav-item 排列正确)。窄屏不显搜索框(横向空间不足,
    搜索改为后续可扩展) ===== */