i18n 国际化全量接入 + 修复与 UI 增强

- 引入 i18n 系统，所有用户可见字符串替换为 t() 调用，支持中/EN/日三语
- 插件激活时读取 ai.outputLanguage 配置初始化语言，onDidChangeConfiguration 监听变更自动切换
- ReviewPanel 与 SetupViewProvider 注册 onLanguageChange 回调，语言切换时全量重渲染
- package.json description："AI 输出语言" -> "插件语言"
- 修复 repairJsonEscapes 无差别解引号导致 JSON 解析失败
- 设置页规则名称空值时输入框红框 + 错误提示
- 规则导入流程添加 withProgress 加载提示

src/ai/engine.ts

@@ -9,6 +9,7 @@ import type {
   TranslatedDiagnostic,
   AIFinding,
 } from './schema';
+import { t } from '../i18n/messages';
 
 function buildCustomRulePrompt(rules: CustomRule[]): string {
   return rules.map(r =>
@@ -27,22 +28,21 @@ function addLineNumbers(code: string): string {
 }
 
 function repairJsonEscapes(str: string): string {
-  let s = str.replace(/\\"\\n/g, '\\n').replace(/\\"/g, '"');
   let inString = false;
   let out = '';
-  for (let i = 0; i < s.length; i++) {
-    const ch = s[i];
+  for (let i = 0; i < str.length; i++) {
+    const ch = str[i];
     if (ch === '\\') {
       out += ch;
-      if (i + 1 < s.length) { out += s[++i]; }
+      if (i + 1 < str.length) { out += str[++i]; }
     } else if (ch === '"') {
       if (!inString) {
         inString = true;
         out += ch;
       } else {
         let j = i + 1;
-        while (j < s.length && s[j] === ' ') { j++; }
-        if (j < s.length && ':,\]}'.includes(s[j])) {
+        while (j < str.length && str[j] === ' ') { j++; }
+        if (j < str.length && ':,\]}'.includes(str[j])) {
           inString = false;
           out += ch;
         } else {
@@ -109,7 +109,7 @@ export async function runAIReview(
       translatedDiagnostics: [],
       findings: [],
       degraded: true,
-      error: '未配置 API Key',
+      error: t('adapter.noApiKey'),
     };
   }
 
@@ -125,7 +125,7 @@ export async function runAIReview(
       translatedDiagnostics: [],
       findings: [],
       degraded: true,
-      error: `创建 Provider 失败: ${err instanceof Error ? err.message : String(err)}`,
+      error: t('adapter.createProviderFail', { 0: err instanceof Error ? err.message : String(err) }),
     };
   }
 
@@ -166,10 +166,10 @@ export async function runAIReview(
         ruleId: `custom:${r.ruleId}`,
       }));
     } catch (e) {
-      errors.push(`自定义规则响应解析失败: ${e instanceof Error ? e.message : String(e)}`);
+      errors.push(t('adapter.customRuleParseFail', { 0: e instanceof Error ? e.message : String(e) }));
     }
   } else {
-    errors.push(`自定义规则请求失败: ${resultA.reason}`);
+    errors.push(t('adapter.customRuleRequestFail', { 0: resultA.reason }));
   }
 
   let translatedDiagnostics: TranslatedDiagnostic[] = [];
@@ -183,10 +183,10 @@ export async function runAIReview(
       translatedDiagnostics = parsed.translatedDiagnostics ?? [];
       findings = parsed.findings ?? [];
     } catch (e) {
-      errors.push(`AI 审查响应解析失败: ${e instanceof Error ? e.message : String(e)}`);
+      errors.push(t('adapter.aiReviewParseFail', { 0: e instanceof Error ? e.message : String(e) }));
     }
   } else {
-    errors.push(`AI 审查请求失败: ${resultB.reason}`);
+    errors.push(t('adapter.aiReviewRequestFail', { 0: resultB.reason }));
   }
 
   const degraded = errors.length > 0;