feat: v0.4.1 质量加固版 — 工程化基线 + 安全加固 + 测试补齐 + 体验升级

工程化（从零到一）: - 新增 Gitea Actions CI（debian-latest）：类型检查 + Lint + 单元测试 + 产物编译验证 - 新增 husky + lint-staged 预提交钩子（lint-staged + typecheck 门禁） - 移除坏脚本 test:e2e（无 Playwright 配置必失败）；prebuild 改用内置 fs.rmSync - 依赖清理：移除死依赖 sql.js(2MB)/@playwright/test，@types/shell-quote 移至 devDependencies 安全加固: - PolicyEngine 频率限制按会话隔离（多会话并发不再互抢配额） - ConfirmationHook 拒绝记忆加 10 分钟 TTL + 恢复询问入口（新增 2 个 IPC 通道） - Windows run_command 白名单工具（git/node/npm/npx/pnpm/yarn/tsc）改走 cmd.exe /c + 参数数组执行，收窄 shell 注入面 - web_search 四引擎 HTML 解析迁移 node-html-parser（结构化主层 + 正则降级）缺陷修复（测试驱动发现）: - mapError 大小写缺陷：网络错误码永远落入 UNKNOWN 无法触发重试 - 搜狗解析器自我过滤：相对链接补全后又被 sogou.com 过滤导致结果全丢 - 百度复合类名重复收录：class="result c-container" 被双重匹配测试补齐（113 → 194 用例）: - 新增 5 个测试文件：sse-stream / base-adapter / confirmation-hook / ipc-agent 编排链路 / web-search 解析器 - 覆盖 sendMessage 全分支、SSE 流解析、错误映射、确认钩子竞态/超时/批量审批体验升级: - OutputValidator 验证结果可见化（VALIDATION 流事件 → 聊天流提示卡） - SettingsModal 巨型组件拆分（1503 行 → 10 个文件，可独立维护） - MessageList 接入 react-virtuoso 真虚拟滚动（千条消息恒定开销） - MCP 新增 streamable HTTP 传输支持（SDK 内置传输 + DB 迁移 6 + UI 双模式）
2026-08-21 13:58:48 +08:00
parent 2230bcec3f
commit 49c9b25538
41 changed files with 6254 additions and 2608 deletions
@@ -6,9 +6,15 @@
 * 智能排序：引擎权重(50%) + 可达性(30%) + 摘要质量(20%)
 * 自动抓取：对前 N 条结果调用 web_fetch 获取完整正文
 *
+ * v0.4.1: HTML 解析迁移至 node-html-parser（结构化解析）
+ * 主层使用 DOM 结构解析（引擎改版时选择器更精确、可维护性远优于正则），
+ * 正则解析保留为降级路径（结构化解析无结果时兜底）。
+ * 此前纯正则方案违反项目开发规范第一铁律（HTML 解析应使用成熟库）。
+ *
 * @see docs/Agent网络工具通用设计-v2.md — 第 2 章 web_search 搜索设计
 */

+import { parse as parseHtmlDom, type HTMLElement } from 'node-html-parser';
 import type { IMetonaTool, ToolExecutionContext } from '../../types/metona-tool';
 import type { MetonaToolDef } from '../../../harness/types';
 import { MetonaToolCategory, MetonaRiskLevel } from '../../../harness/types';
@@ -64,7 +70,9 @@ const ENGINES: EngineDef[] = [
    name: 'bing',
    weight: 90,
    searchUrl: (q, tr) => {
-      const freshness = tr ? `&filters=ex1:"ez${tr === 'day' ? '1' : tr === 'week' ? '2' : tr === 'month' ? '3' : '4'}"` : '';
+      const freshness = tr
+        ? `&filters=ex1:"ez${tr === 'day' ? '1' : tr === 'week' ? '2' : tr === 'month' ? '3' : '4'}"`
+        : '';
      return `https://www.bing.com/search?q=${encodeURIComponent(q)}${freshness}&count=20`;
    },
    parse: parseBing,
@@ -89,9 +97,150 @@ const ENGINES: EngineDef[] = [
  },
 ];

-// ===== HTML 解析器（正则实现，后续可迁移至 cheerio） =====
+// ===== HTML 解析器（v0.4.1: node-html-parser 结构化解析为主层，正则为降级层） =====

-function parseBing(html: string): SearchResult[] {
+/**
+ * v0.4.1: 从结果块中提取标题链接 — 跳过指向搜索引擎自身域名的链接（favicon/子导航等）
+ */
+function extractTitleLink(
+  block: HTMLElement,
+  selfDomain: string,
+): { url: string; title: string } | null {
+  for (const a of block.querySelectorAll('a[href]')) {
+    const url = a.getAttribute('href') ?? '';
+    const title = a.text.trim();
+    if (title && url && !url.includes(selfDomain) && url.startsWith('http')) {
+      return { url, title };
+    }
+  }
+  return null;
+}
+
+/** v0.4.1: 提取第一个非空文本的选择器（按优先级尝试多个候选选择器） */
+function extractText(block: HTMLElement, selectors: string[]): string {
+  for (const sel of selectors) {
+    const el = block.querySelector(sel);
+    if (el) {
+      const text = el.text.trim();
+      if (text) return text;
+    }
+  }
+  return '';
+}
+
+/** v0.4.1: Bing 结构化解析 — li.b_algo 结果块 */
+function parseBingStructured(html: string): SearchResult[] {
+  const results: SearchResult[] = [];
+  const root = parseHtmlDom(html);
+  for (const block of root.querySelectorAll('li.b_algo')) {
+    const link = extractTitleLink(block, 'bing.com');
+    if (!link) continue;
+    const snippet = extractText(block, ['p', '.b_caption']);
+    results.push({ title: link.title, url: link.url, snippet, engine: 'bing', weight: 90 });
+  }
+  return results;
+}
+
+/** v0.4.1: 百度结构化解析 — div.result / div.c-container 结果块，优先 a[data-url] 真实链接 */
+function parseBaiduStructured(html: string): SearchResult[] {
+  const results: SearchResult[] = [];
+  const root = parseHtmlDom(html);
+  // 复合选择器去重：class="result c-container" 的元素同时命中两个类名，
+  // 分别查询再拼接会重复收录同一结果块
+  const blocks = root.querySelectorAll('div.result, div.c-container');
+  for (const block of blocks) {
+    // 百度标题链接: 优先 data-url 属性（真实目标 URL），href 通常是 baidu.com/link 跳转
+    const dataUrlLink = block.querySelector('a[data-url]');
+    let url = dataUrlLink?.getAttribute('data-url') ?? '';
+    let title = dataUrlLink?.text.trim() ?? '';
+    if (!url || !title) {
+      const fallback = block.querySelector('h3 a[href]') ?? block.querySelector('a[href]');
+      if (fallback) {
+        const href = fallback.getAttribute('href') ?? '';
+        url = href.startsWith('http') ? href : href ? `https://${href}` : '';
+        title = fallback.text.trim();
+      }
+    }
+    const snippet = extractText(block, ['.c-abstract', '[class^="content-right"]']);
+    if (title && url && !url.includes('baidu.com/link')) {
+      results.push({ title, url, snippet, engine: '百度', weight: 80 });
+    }
+  }
+  return results;
+}
+
+/**
+ * v0.4.1: 搜狗结构化解析 — div.vrwrap / div.rb 结果块（相对链接补全 sogou.com 前缀）
+ *
+ * v0.4.1 修复（原正则实现遗留缺陷）: 搜狗结果链接是 sogou.com/link?url=... 跳转形式，
+ * 原 `!url.includes('sogou.com')` 过滤条件把所有跳转结果一并丢弃（相对链接补全后必含 sogou.com），
+ * 导致搜狗引擎基本无法返回结果。现仅过滤 sogou 自身页面链接，保留 /link 跳转结果
+ * （可达性预检会跟随重定向验证）。
+ */
+function parseSogouStructured(html: string): SearchResult[] {
+  const results: SearchResult[] = [];
+  const root = parseHtmlDom(html);
+  // 复合选择器避免同一元素命中两个类名时重复收录
+  const blocks = root.querySelectorAll('div.vrwrap, div.rb');
+  for (const block of blocks) {
+    const a = block.querySelector('h3 a[href]') ?? block.querySelector('a[href]');
+    if (!a) continue;
+    const href = a.getAttribute('href') ?? '';
+    const url = href.startsWith('http') ? href : `https://www.sogou.com${href}`;
+    const title = a.text.trim();
+    const snippet = extractText(block, ['.star-wiki', '.space-txt', '.str_info']);
+    // 过滤搜狗自身页面（保留 /link 跳转结果）
+    const isSelfPage = url.includes('sogou.com') && !url.includes('/link');
+    if (title && url && !isSelfPage) {
+      results.push({ title, url, snippet, engine: '搜狗', weight: 75 });
+    }
+  }
+  return results;
+}
+
+/** v0.4.1: 360 结构化解析 — li.res-list / div.result 结果块 */
+function parse360Structured(html: string): SearchResult[] {
+  const results: SearchResult[] = [];
+  const root = parseHtmlDom(html);
+  // 复合选择器避免同一元素命中多个类名时重复收录
+  const blocks = root.querySelectorAll('li.res-list, div.result');
+  for (const block of blocks) {
+    const link = extractTitleLink(block, 'so.com');
+    if (!link) continue;
+    const snippet = extractText(block, ['.res-desc', '.res-rich', '.res-summary', 'dd']);
+    results.push({ title: link.title, url: link.url, snippet, engine: '360搜索', weight: 75 });
+  }
+  return results;
+}
+
+/** v0.4.1: 结构化解析 + 正则降级的组合入口（供 ENGINES 引用，测试导出） */
+export function parseBing(html: string): SearchResult[] {
+  const structured = parseBingStructured(html);
+  if (structured.length > 0) return structured;
+  return parseBingRegex(html);
+}
+
+export function parseBaidu(html: string): SearchResult[] {
+  const structured = parseBaiduStructured(html);
+  if (structured.length > 0) return structured;
+  return parseBaiduRegex(html);
+}
+
+export function parseSogou(html: string): SearchResult[] {
+  const structured = parseSogouStructured(html);
+  if (structured.length > 0) return structured;
+  return parseSogouRegex(html);
+}
+
+export function parse360(html: string): SearchResult[] {
+  const structured = parse360Structured(html);
+  if (structured.length > 0) return structured;
+  return parse360Regex(html);
+}
+
+// ===== 正则降级解析器（v0.4.1 前的主实现，结构化解析无结果时兜底） =====
+
+function parseBingRegex(html: string): SearchResult[] {
  const results: SearchResult[] = [];
  const blocks = html.split(/<li[^>]*class="b_algo"/i).slice(1);
  for (const block of blocks) {
@@ -99,7 +248,9 @@ function parseBing(html: string): SearchResult[] {
    if (!titleMatch) continue;
    const url = titleMatch[1];
    const title = titleMatch[2].replace(/<[^>]+>/g, '').trim();
-    const snippetMatch = block.match(/<p[^>]*>([\s\S]*?)<\/p>/i) || block.match(/class="b_caption"[^>]*>([\s\S]*?)<\/div>/i);
+    const snippetMatch =
+      block.match(/<p[^>]*>([\s\S]*?)<\/p>/i) ||
+      block.match(/class="b_caption"[^>]*>([\s\S]*?)<\/div>/i);
    const snippet = snippetMatch ? snippetMatch[1].replace(/<[^>]+>/g, '').trim() : '';
    if (title && url && !url.includes('bing.com')) {
      results.push({ title, url, snippet, engine: 'bing', weight: 90 });
@@ -108,17 +259,19 @@ function parseBing(html: string): SearchResult[] {
  return results;
 }

-function parseBaidu(html: string): SearchResult[] {
+function parseBaiduRegex(html: string): SearchResult[] {
  const results: SearchResult[] = [];
  const blocks = html.split(/<div[^>]*class="result[^"]*"/i).slice(1);
  for (const block of blocks) {
-    const titleMatch = block.match(/<a[^>]*data-url="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i)
-      || block.match(/<a[^>]*href="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i);
+    const titleMatch =
+      block.match(/<a[^>]*data-url="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i) ||
+      block.match(/<a[^>]*href="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i);
    if (!titleMatch) continue;
    const url = titleMatch[1].startsWith('http') ? titleMatch[1] : `https://${titleMatch[1]}`;
    const title = titleMatch[2].replace(/<[^>]+>/g, '').trim();
-    const snippetMatch = block.match(/class="c-abstract[^"]*"[^>]*>([\s\S]*?)<\/span>/i)
-      || block.match(/class="content-right[^"]*"[^>]*>([\s\S]*?)<\/div>/i);
+    const snippetMatch =
+      block.match(/class="c-abstract[^"]*"[^>]*>([\s\S]*?)<\/span>/i) ||
+      block.match(/class="content-right[^"]*"[^>]*>([\s\S]*?)<\/div>/i);
    const snippet = snippetMatch ? snippetMatch[1].replace(/<[^>]+>/g, '').trim() : '';
    if (title && url && !url.includes('baidu.com/link')) {
      results.push({ title, url, snippet, engine: '百度', weight: 80 });
@@ -127,18 +280,23 @@ function parseBaidu(html: string): SearchResult[] {
  return results;
 }

-function parseSogou(html: string): SearchResult[] {
+function parseSogouRegex(html: string): SearchResult[] {
  const results: SearchResult[] = [];
-  const blocks = html.split(/<div[^>]*class="vrwrap"/i).slice(1)
+  const blocks = html
+    .split(/<div[^>]*class="vrwrap"/i)
+    .slice(1)
    .concat(html.split(/<div[^>]*class="rb"/i).slice(1));
  for (const block of blocks) {
    const titleMatch = block.match(/<a[^>]*href="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i);
    if (!titleMatch) continue;
-    const url = titleMatch[1].startsWith('http') ? titleMatch[1] : `https://www.sogou.com${titleMatch[1]}`;
+    const url = titleMatch[1].startsWith('http')
+      ? titleMatch[1]
+      : `https://www.sogou.com${titleMatch[1]}`;
    const title = titleMatch[2].replace(/<[^>]+>/g, '').trim();
-    const snippetMatch = block.match(/class="star-wiki[^"]*"[^>]*>([\s\S]*?)<\/div>/i)
-      || block.match(/class="space-txt[^"]*"[^>]*>([\s\S]*?)<\/p>/i)
-      || block.match(/class="str_info[^"]*"[^>]*>([\s\S]*?)<\/p>/i);
+    const snippetMatch =
+      block.match(/class="star-wiki[^"]*"[^>]*>([\s\S]*?)<\/div>/i) ||
+      block.match(/class="space-txt[^"]*"[^>]*>([\s\S]*?)<\/p>/i) ||
+      block.match(/class="str_info[^"]*"[^>]*>([\s\S]*?)<\/p>/i);
    const snippet = snippetMatch ? snippetMatch[1].replace(/<[^>]+>/g, '').trim() : '';
    if (title && url && !url.includes('sogou.com')) {
      results.push({ title, url, snippet, engine: '搜狗', weight: 75 });
@@ -147,19 +305,22 @@ function parseSogou(html: string): SearchResult[] {
  return results;
 }

-function parse360(html: string): SearchResult[] {
+function parse360Regex(html: string): SearchResult[] {
  const results: SearchResult[] = [];
-  const blocks = html.split(/<li[^>]*class="res-list"/i).slice(1)
+  const blocks = html
+    .split(/<li[^>]*class="res-list"/i)
+    .slice(1)
    .concat(html.split(/<div[^>]*class="result"/i).slice(1));
  for (const block of blocks) {
    const titleMatch = block.match(/<a[^>]*href="([^"]+)"[^>]*>([\s\S]*?)<\/a>/i);
    if (!titleMatch) continue;
    const url = titleMatch[1];
    const title = titleMatch[2].replace(/<[^>]+>/g, '').trim();
-    const snippetMatch = block.match(/class="res-desc[^"]*"[^>]*>([\s\S]*?)<\/p>/i)
-      || block.match(/class="res-rich[^"]*"[^>]*>([\s\S]*?)<\/div>/i)
-      || block.match(/class="res-summary[^"]*"[^>]*>([\s\S]*?)<\/p>/i)
-      || block.match(/<dd[^>]*>([\s\S]*?)<\/dd>/i);
+    const snippetMatch =
+      block.match(/class="res-desc[^"]*"[^>]*>([\s\S]*?)<\/p>/i) ||
+      block.match(/class="res-rich[^"]*"[^>]*>([\s\S]*?)<\/div>/i) ||
+      block.match(/class="res-summary[^"]*"[^>]*>([\s\S]*?)<\/p>/i) ||
+      block.match(/<dd[^>]*>([\s\S]*?)<\/dd>/i);
    const snippet = snippetMatch ? snippetMatch[1].replace(/<[^>]+>/g, '').trim() : '';
    if (title && url && !url.includes('so.com')) {
      results.push({ title, url, snippet, engine: '360搜索', weight: 75 });
@@ -192,7 +353,7 @@ async function checkReachability(urls: string[], concurrency = 5): Promise<Map<s
 function smartSort(results: SearchResult[]): SearchResult[] {
  for (const r of results) {
    const reachability = r.reachable ? 30 : -20;
-    const snippetQuality = Math.min(r.snippet.length, 100) / 100 * 20;
+    const snippetQuality = (Math.min(r.snippet.length, 100) / 100) * 20;
    const weightScore = (r.weight / 100) * 50;
    r._score = weightScore + reachability + snippetQuality;
  }
@@ -223,13 +384,20 @@ function computeRelevance(query: string, result: SearchResult): number {
 export class WebSearchTool implements IMetonaTool {
  readonly definition: MetonaToolDef = {
    name: 'web_search',
-    description: 'Search the web for information. Returns titles, snippets, and URLs. When SearXNG is enabled, uses the configured SearXNG instance; otherwise uses built-in engines (Bing, Baidu, Sogou, 360). Automatically fetches full content for top results.',
+    description:
+      'Search the web for information. Returns titles, snippets, and URLs. When SearXNG is enabled, uses the configured SearXNG instance; otherwise uses built-in engines (Bing, Baidu, Sogou, 360). Automatically fetches full content for top results.',
    parameters: {
      type: 'object',
      properties: {
        query: { type: 'string', description: 'Search query keywords' },
-        time_range: { type: 'string', description: 'Time filter: day, week, month, year (optional)' },
-        enhance_snippets: { type: 'boolean', description: 'Auto-enhance short snippets (default true)' },
+        time_range: {
+          type: 'string',
+          description: 'Time filter: day, week, month, year (optional)',
+        },
+        enhance_snippets: {
+          type: 'boolean',
+          description: 'Auto-enhance short snippets (default true)',
+        },
      },
      required: ['query'],
    },
@@ -265,7 +433,10 @@ export class WebSearchTool implements IMetonaTool {
      ? Math.min(8, Math.max(3, searxngConfig.fetch_count > 0 ? searxngConfig.fetch_count : 5))
      : 5;

-    logTool('web_search', `Mode=${useSearXNG ? 'searxng' : 'builtin'}, maxResults=${maxResults}, fetchTop=${fetchTop}`);
+    logTool(
+      'web_search',
+      `Mode=${useSearXNG ? 'searxng' : 'builtin'}, maxResults=${maxResults}, fetchTop=${fetchTop}`,
+    );

    // 缓存检查（key 含模式 + maxResults + fetchTop，避免配置变更后返回旧缓存）
    const cacheKey = `${searxngConfig.enabled ? 'searxng' : 'builtin'}:${maxResults}:${fetchTop}:${normalizeUrl(query).toLowerCase()}`;
@@ -338,7 +509,10 @@ export class WebSearchTool implements IMetonaTool {

    // 写入缓存
    searchCache.set(cacheKey, output);
-    logTool('web_search', `Completed: ${sorted.length} results, ${fetchedContent.length} fetched, mode=${mode}`);
+    logTool(
+      'web_search',
+      `Completed: ${sorted.length} results, ${fetchedContent.length} fetched, mode=${mode}`,
+    );

    return output;
  }
@@ -394,7 +568,7 @@ export class WebSearchTool implements IMetonaTool {
            }
          }
        } else {
-          const data = await response.json() as { results?: Array<Record<string, unknown>> };
+          const data = (await response.json()) as { results?: Array<Record<string, unknown>> };
          for (const item of data.results ?? []) {
            const url = item.url as string;
            const title = item.title as string;
@@ -418,7 +592,10 @@ export class WebSearchTool implements IMetonaTool {
      }

      results.push(...pageResults);
-      logTool('web_search', `[SearXNG] Page ${page}: +${pageResults.length} (total ${results.length})`);
+      logTool(
+        'web_search',
+        `[SearXNG] Page ${page}: +${pageResults.length} (total ${results.length})`,
+      );
      page++;
    }

@@ -440,12 +617,17 @@ export class WebSearchTool implements IMetonaTool {
    const searchPromises = ENGINES.map(async (engine) => {
      try {
        const url = engine.searchUrl(query, timeRange);
-        const response = await fetchWithTimeout(url, {
-          headers: {
-            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/131.0.0.0 Safari/537.36',
-            'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
+        const response = await fetchWithTimeout(
+          url,
+          {
+            headers: {
+              'User-Agent':
+                'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/131.0.0.0 Safari/537.36',
+              'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
+            },
          },
-        }, 8_000);
+          8_000,
+        );

        if (!response.ok) {
          logTool('web_search', `[内置] ${engine.name} HTTP ${response.status}`);
@@ -501,10 +683,10 @@ export class WebSearchTool implements IMetonaTool {
      if (enhanced >= maxEnhance) break;
      if (r.snippet.length < 30 && r.reachable) {
        try {
-          const fetchResult = await this.webFetchTool.execute(
+          const fetchResult = (await this.webFetchTool.execute(
            { url: r.url },
            { sessionId: '', workspacePath: '', iteration: 0, requestId: '' },
-          ) as { success: boolean; content?: string };
+          )) as { success: boolean; content?: string };

          if (fetchResult.success && fetchResult.content) {
            const text = fetchResult.content.slice(0, 200);
@@ -537,7 +719,10 @@ export class WebSearchTool implements IMetonaTool {
    fetchTop: number,
  ): Promise<Array<{ url: string; title: string; content: string }>> {
    // 相关性评分（不过滤，relevance=0 的结果也参与抓取候选）
-    const withRelevance = results.map((r) => ({ result: r, relevance: computeRelevance(query, r) }));
+    const withRelevance = results.map((r) => ({
+      result: r,
+      relevance: computeRelevance(query, r),
+    }));
    const filtered = withRelevance.length > 0 ? withRelevance : [];

    // 确定抓取数量：fetchTop 已在 execute() 中综合了配置面板和工具参数
@@ -554,27 +739,30 @@ export class WebSearchTool implements IMetonaTool {
      }
      toFetch = shuffled.slice(0, topN);
    } else {
-      toFetch = filtered
-        .sort((a, b) => b.relevance - a.relevance)
-        .slice(0, topN);
+      toFetch = filtered.sort((a, b) => b.relevance - a.relevance).slice(0, topN);
    }

    const fetched: Array<{ url: string; title: string; content: string }> = [];

-    const fetchOne = async (item: { result: SearchResult }): Promise<{ url: string; title: string; content: string } | null> => {
+    const fetchOne = async (item: {
+      result: SearchResult;
+    }): Promise<{ url: string; title: string; content: string } | null> => {
      try {
        // 委托给 WebFetchTool — 享受三阶段回退策略（HTTP + 反爬 + 浏览器渲染）
-        const fetchResult = await this.webFetchTool.execute(
+        const fetchResult = (await this.webFetchTool.execute(
          { url: item.result.url },
          { sessionId: '', workspacePath: '', iteration: 0, requestId: '' },
-        ) as { success: boolean; content?: string };
+        )) as { success: boolean; content?: string };

        if (fetchResult.success && fetchResult.content) {
          return { url: item.result.url, title: item.result.title, content: fetchResult.content };
        }
        return null;
      } catch (err) {
-        logTool('web_search', `Auto-fetch failed for ${item.result.url}: ${(err as Error).message}`);
+        logTool(
+          'web_search',
+          `Auto-fetch failed for ${item.result.url}: ${(err as Error).message}`,
+        );
        return null;
      }
    };
@@ -601,7 +789,9 @@ export class WebSearchTool implements IMetonaTool {
      lines.push(`${i + 1}. ${r.title}`);
      lines.push(`   URL: ${r.url}`);
      if (r.snippet) lines.push(`   摘要: ${r.snippet.slice(0, 150)}`);
-      lines.push(`   来源: ${r.engine}${r.reachable === false ? ' (不可达)' : ''}${r._enhanced ? ' [已增强]' : ''}\n`);
+      lines.push(
+        `   来源: ${r.engine}${r.reachable === false ? ' (不可达)' : ''}${r._enhanced ? ' [已增强]' : ''}\n`,
+      );
    });
    return lines.join('\n');
  }