feat(ai): 新增「AI 修复诊断」——把当前文件 LSP 诊断交给 AI 修复

AiCodeAction 增加 fix 模式并接收诊断文本；App 收集当前文件诊断 + 整篇代码送入，
结果经替换应用；编辑器右键(支持 LSP/Git 时)与命令面板均可触发。

Author: qianmoQ

src/App.vue

@@ -399,7 +399,7 @@
     <DebugPanel/>
 
     <!-- AI 代码操作（解释/重构/生成测试） -->
-    <AiCodeAction v-if="aiCodeCtx" :language="currentLanguage" :code="aiCodeCtx.code" :action="aiCodeCtx.action"
+    <AiCodeAction v-if="aiCodeCtx" :language="currentLanguage" :code="aiCodeCtx.code" :action="aiCodeCtx.action" :diagnostics="aiCodeCtx.diagnostics"
                   @replace="onAiReplace" @insert="onAiInsert" @close="aiCodeCtx = null"/>
 
     <!-- .gitignore 模板 -->
@@ -463,6 +463,7 @@
         <button class="w-full text-left px-3 py-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="aiCodeAction('explain')">{{ t('aiCode.title.explain') }}</button>
         <button class="w-full text-left px-3 py-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="aiCodeAction('refactor')">{{ t('aiCode.title.refactor') }}</button>
         <button class="w-full text-left px-3 py-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="aiCodeAction('test')">{{ t('aiCode.title.test') }}</button>
+        <button v-if="canBlame || editorCtx.lsp" class="w-full text-left px-3 py-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="aiFixDiagnostics">{{ t('aiCode.title.fix') }}</button>
         <div class="border-t border-gray-100 dark:border-gray-700 my-1"></div>
         <button class="w-full text-left px-3 py-1.5 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="sendToTerminal">
           {{ t('app.sendToTerminal') }}
@@ -543,6 +544,7 @@ import {useWorkspace} from './composables/useWorkspace'
 import {useTextCommands} from './composables/useTextCommands'
 import {useBookmarks} from './composables/useBookmarks'
 import {foldAll, unfoldAll, matchBrackets} from '@codemirror/language'
+import {diagnostics} from './editor/lspDiagnostics'
 import {useGitPermalink} from './composables/useGitPermalink'
 import {useRevealInTree} from './composables/useRevealInTree'
 import {useWorkspaceRoots} from './composables/useWorkspaceRoots'
@@ -1420,7 +1422,21 @@ const runTests = async () => {
 }
 
 // C2：对选区（无选区则整篇）执行 AI 操作：解释 / 重构 / 生成测试
-const aiCodeCtx = ref<{action: 'explain' | 'refactor' | 'test'; code: string; from: number; to: number} | null>(null)
+const aiCodeCtx = ref<{action: 'explain' | 'refactor' | 'test' | 'fix'; code: string; from: number; to: number; diagnostics?: string} | null>(null)
+// AI 修复诊断：把当前文件的 LSP 诊断交给 AI 修复整篇
+const aiFixDiagnostics = () => {
+  closeEditorCtx()
+  const view = editorView.value
+  if (!view) {
+    return
+  }
+  if (!diagnostics.value.length) {
+    toast.info(t('app.noDiagnostics'))
+    return
+  }
+  const diagText = diagnostics.value.map(d => `[${d.severity}] L${d.line}:${d.col} ${d.message}`).join('\n')
+  aiCodeCtx.value = {action: 'fix', code: view.state.doc.toString(), from: 0, to: view.state.doc.length, diagnostics: diagText}
+}
 const aiCodeAction = (action: 'explain' | 'refactor' | 'test') => {
   closeEditorCtx()
   const view = editorView.value
@@ -2228,6 +2244,7 @@ const paletteCommands = computed<PaletteCommand[]>(() => [
   {id: 'explainCode', label: t('command.explainCode'), icon: Sparkles, run: () => explainCode()},
   {id: 'generateTests', label: t('command.generateTests'), icon: Sparkles, run: () => generateTests()},
   {id: 'formatWithAi', label: t('command.formatWithAi'), icon: Sparkles, run: () => formatWithAi()},
+  {id: 'aiFixDiagnostics', label: t('command.aiFixDiagnostics'), icon: Sparkles, run: () => aiFixDiagnostics()},
   {id: 'history', label: t('command.history'), icon: History, run: () => { showHistory.value = true }},
   {id: 'diff', label: t('command.diff'), icon: GitCompare, run: () => openDiff()},
   {id: 'compareClipboard', label: t('command.compareClipboard'), icon: GitCompare, run: () => compareWithClipboard()},

src/components/AiCodeAction.vue

@@ -22,7 +22,7 @@
       <div class="flex items-center justify-end gap-2 px-4 py-2.5 border-t border-gray-200 dark:border-gray-700 flex-shrink-0">
         <button class="text-xs px-3 py-1.5 rounded text-gray-600 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="emit('close')">{{ t('aiCode.close') }}</button>
         <button v-if="!loading && result" class="text-xs px-3 py-1.5 rounded text-gray-600 dark:text-gray-300 hover:bg-gray-100 dark:hover:bg-gray-700 cursor-pointer" @click="copy">{{ t('aiCode.copy') }}</button>
-        <button v-if="!loading && result && action === 'refactor'" class="text-xs px-3 py-1.5 rounded bg-blue-500 text-white hover:bg-blue-600 cursor-pointer" @click="apply('replace')">{{ t('aiCode.replace') }}</button>
+        <button v-if="!loading && result && (action === 'refactor' || action === 'fix')" class="text-xs px-3 py-1.5 rounded bg-blue-500 text-white hover:bg-blue-600 cursor-pointer" @click="apply('replace')">{{ t('aiCode.replace') }}</button>
         <button v-if="!loading && result && action === 'test'" class="text-xs px-3 py-1.5 rounded bg-blue-500 text-white hover:bg-blue-600 cursor-pointer" @click="apply('insert')">{{ t('aiCode.insert') }}</button>
       </div>
     </div>
@@ -37,7 +37,7 @@ import {useI18n} from 'vue-i18n'
 import {useAiConfig} from '../composables/useAiConfig'
 import {useToast} from '../plugins/toast'
 
-const props = defineProps<{ language: string; code: string; action: 'explain' | 'refactor' | 'test' }>()
+const props = defineProps<{ language: string; code: string; action: 'explain' | 'refactor' | 'test' | 'fix'; diagnostics?: string }>()
 const emit = defineEmits<{ replace: [code: string]; insert: [code: string]; close: [] }>()
 
 const toast = useToast()
@@ -62,9 +62,17 @@ const systemFor = (): string => {
       return `你是代码助手。重构给定的 ${lang} 代码以提升可读性与质量，保持行为不变。只输出重构后的完整代码，不要解释，不要使用 Markdown 代码块标记。`
     case 'test':
       return `你是测试工程师。为给定的 ${lang} 代码生成单元测试。只输出测试代码，不要解释，不要使用 Markdown 代码块标记。`
+    case 'fix':
+      return `你是代码助手。修复给定 ${lang} 代码中的错误与警告（用户消息附带诊断信息），保持其余行为不变。只输出修复后的完整代码，不要解释，不要使用 Markdown 代码块标记。`
   }
 }
 
+// 'fix' 把诊断附在用户消息里
+const userContent = (): string =>
+  props.action === 'fix' && props.diagnostics
+    ? `${props.code}\n\n--- 待修复的诊断 ---\n${props.diagnostics}`
+    : props.code
+
 const run = async () => {
   reload()
   if (!active.value.apiKey) {
@@ -80,7 +88,7 @@ const run = async () => {
       apiKey: active.value.apiKey,
       model: active.value.model,
       system: systemFor(),
-      messages: [{role: 'user', content: props.code}]
+      messages: [{role: 'user', content: userContent()}]
     })
     result.value = props.action === 'explain' ? reply.trim() : stripFences(reply)
   }

src/i18n/locales/en.json

@@ -683,6 +683,7 @@
     "explainCode": "AI explain code (selection or all)",
     "generateTests": "AI generate tests (selection or all)",
     "formatWithAi": "AI format code",
+    "aiFixDiagnostics": "AI fix diagnostics",
     "history": "Run history",
     "diff": "Diff (current vs saved)",
     "preview": "Live preview (Markdown / HTML)",
@@ -1128,7 +1129,8 @@
     "title": {
       "explain": "AI: Explain code",
       "refactor": "AI: Refactor code",
-      "test": "AI: Generate tests"
+      "test": "AI: Generate tests",
+      "fix": "AI: Fix diagnostics"
     },
     "thinking": "AI is thinking…",
     "replace": "Replace selection",
@@ -1338,6 +1340,7 @@
     "copiedMarkdown": "Copied as Markdown code block",
     "indentConverted": "Indentation converted",
     "noMatchingBracket": "No matching bracket at cursor",
+    "noDiagnostics": "No diagnostics in the current file",
     "clipboardEmpty": "Clipboard is empty",
     "clipboardReadFailed": "Failed to read clipboard: ",
     "copyFailed": "Copy failed: ",

src/i18n/locales/zh-CN.json

@@ -683,6 +683,7 @@
     "explainCode": "AI 解释代码（选中或全文）",
     "generateTests": "AI 生成测试（选中或全文）",
     "formatWithAi": "AI 格式化代码",
+    "aiFixDiagnostics": "AI 修复诊断",
     "history": "执行历史",
     "diff": "差异对比（当前 vs 已保存）",
     "preview": "实时预览（Markdown / HTML）",
@@ -1128,7 +1129,8 @@
     "title": {
       "explain": "AI 解释代码",
       "refactor": "AI 重构代码",
-      "test": "AI 生成测试"
+      "test": "AI 生成测试",
+      "fix": "AI 修复诊断"
     },
     "thinking": "AI 思考中…",
     "replace": "替换选区",
@@ -1338,6 +1340,7 @@
     "copiedMarkdown": "已复制为 Markdown 代码块",
     "indentConverted": "已转换缩进",
     "noMatchingBracket": "光标处没有可匹配的括号",
+    "noDiagnostics": "当前文件没有诊断问题",
     "clipboardEmpty": "剪贴板为空",
     "clipboardReadFailed": "读取剪贴板失败: ",
     "copyFailed": "复制失败: ",