feat(i18n): complete internationalization for MCP preset descriptions

- Add i18n keys for all 5 MCP preset descriptions (fetch, time, memory, sequential-thinking, context7)
- Refactor mcpPresets.ts to use i18n keys instead of hardcoded Chinese descriptions
- Add getMcpPresetWithDescription() helper function for dynamic translation
- Update McpFormModal to use translated descriptions when applying presets
- Fix inconsistent key naming: sequentialThinking -> sequential-thinking

This ensures MCP preset descriptions automatically switch language based on user's locale setting.

src/components/mcp/McpFormModal.tsx

@@ -2,7 +2,7 @@ import React, { useState } from "react";
 import { useTranslation } from "react-i18next";
 import { X, Save, AlertCircle, ChevronDown, ChevronUp } from "lucide-react";
 import { McpServer, McpServerSpec } from "../../types";
-import { mcpPresets } from "../../config/mcpPresets";
+import { mcpPresets, getMcpPresetWithDescription } from "../../config/mcpPresets";
 import { buttonStyles, inputStyles } from "../../lib/styles";
 import McpWizardModal from "./McpWizardModal";
 import {
@@ -139,25 +139,27 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
   // 应用预设（写入表单但不落库）
   const applyPreset = (index: number) => {
     if (index < 0 || index >= mcpPresets.length) return;
-    const p = mcpPresets[index];
+    const preset = mcpPresets[index];
-    const id = ensureUniqueId(p.id);
+    const presetWithDesc = getMcpPresetWithDescription(preset, t);
+
+    const id = ensureUniqueId(presetWithDesc.id);
     setFormId(id);
-    setFormName(p.name || p.id);
+    setFormName(presetWithDesc.name || presetWithDesc.id);
-    setFormDescription(p.description || "");
+    setFormDescription(presetWithDesc.description || "");
-    setFormHomepage(p.homepage || "");
+    setFormHomepage(presetWithDesc.homepage || "");
-    setFormDocs(p.docs || "");
+    setFormDocs(presetWithDesc.docs || "");
-    setFormTags(p.tags?.join(", ") || "");
+    setFormTags(presetWithDesc.tags?.join(", ") || "");
 
     // 根据格式转换配置
     if (useToml) {
-      const toml = mcpServerToToml(p.server);
+      const toml = mcpServerToToml(presetWithDesc.server);
       setFormConfig(toml);
       {
         const err = validateToml(toml);
         setConfigError(formatTomlError(err));
       }
     } else {
-      const json = JSON.stringify(p.server, null, 2);
+      const json = JSON.stringify(presetWithDesc.server, null, 2);
       setFormConfig(json);
       setConfigError(validateJson(json));
     }
@@ -464,21 +466,24 @@ const McpFormModal: React.FC<McpFormModalProps> = ({
                 >
                   {t("presetSelector.custom")}
                 </button>
-                {mcpPresets.map((p, idx) => (
+                {mcpPresets.map((preset, idx) => {
-                  <button
+                  const descriptionKey = `mcp.presets.${preset.id}.description`;
-                    key={p.id}
+                  return (
-                    type="button"
+                    <button
-                    onClick={() => applyPreset(idx)}
+                      key={preset.id}
-                    className={`inline-flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium transition-colors ${
+                      type="button"
-                      selectedPreset === idx
+                      onClick={() => applyPreset(idx)}
-                        ? "bg-emerald-500 text-white dark:bg-emerald-600"
+                      className={`inline-flex items-center gap-2 px-4 py-2 rounded-lg text-sm font-medium transition-colors ${
-                        : "bg-gray-100 dark:bg-gray-800 text-gray-500 dark:text-gray-400 hover:bg-gray-200 dark:hover:bg-gray-700"
+                        selectedPreset === idx
-                    }`}
+                          ? "bg-emerald-500 text-white dark:bg-emerald-600"
-                    title={p.description}
+                          : "bg-gray-100 dark:bg-gray-800 text-gray-500 dark:text-gray-400 hover:bg-gray-200 dark:hover:bg-gray-700"
-                  >
+                      }`}
-                    {p.id}
+                      title={t(descriptionKey)}
-                  </button>
+                    >
-                ))}
+                      {preset.id}
+                    </button>
+                  );
+                })}
               </div>
             </div>
           )}

src/config/mcpPresets.ts

@@ -1,17 +1,16 @@
 import { McpServer, McpServerSpec } from "../types";
 
-export type McpPreset = Omit<McpServer, "enabled">;
+export type McpPreset = Omit<McpServer, "enabled" | "description">;
 
 // 预设 MCP（逻辑简化版）：
 // - 仅包含最常用、可快速落地的 stdio 模式示例
 // - 不涉及分类/模板/测速等复杂逻辑，默认以 disabled 形式"回种"到 config.json
 // - 用户可在 MCP 面板中一键启用/编辑
+// - description 字段使用国际化 key，在使用时通过 t() 函数获取翻译
 export const mcpPresets: McpPreset[] = [
   {
     id: "fetch",
     name: "mcp-server-fetch",
-    description:
-      "通用 HTTP 请求工具，支持 GET/POST 等 HTTP 方法，适合快速请求接口/抓取网页数据",
     tags: ["stdio", "http", "web"],
     server: {
       type: "stdio",
@@ -24,8 +23,6 @@ export const mcpPresets: McpPreset[] = [
   {
     id: "time",
     name: "@modelcontextprotocol/server-time",
-    description:
-      "时间查询工具，提供当前时间、时区转换、日期计算等功能",
     tags: ["stdio", "time", "utility"],
     server: {
       type: "stdio",
@@ -38,8 +35,6 @@ export const mcpPresets: McpPreset[] = [
   {
     id: "memory",
     name: "@modelcontextprotocol/server-memory",
-    description:
-      "知识图谱记忆系统，支持存储实体、关系和观察，让 AI 记住对话中的重要信息",
     tags: ["stdio", "memory", "graph"],
     server: {
       type: "stdio",
@@ -52,7 +47,6 @@ export const mcpPresets: McpPreset[] = [
   {
     id: "sequential-thinking",
     name: "@modelcontextprotocol/server-sequential-thinking",
-    description: "顺序思考工具，帮助 AI 将复杂问题分解为多个步骤，逐步深入思考",
     tags: ["stdio", "thinking", "reasoning"],
     server: {
       type: "stdio",
@@ -65,8 +59,6 @@ export const mcpPresets: McpPreset[] = [
   {
     id: "context7",
     name: "@upstash/context7-mcp",
-    description:
-      "Context7 文档搜索工具，提供最新的库文档和代码示例，配置 key 会有更高限额",
     tags: ["stdio", "docs", "search"],
     server: {
       type: "stdio",
@@ -78,4 +70,16 @@ export const mcpPresets: McpPreset[] = [
   },
 ];
 
+// 获取带国际化描述的预设
+export const getMcpPresetWithDescription = (
+  preset: McpPreset,
+  t: (key: string) => string,
+): McpServer => {
+  const descriptionKey = `mcp.presets.${preset.id}.description`;
+  return {
+    ...preset,
+    description: t(descriptionKey),
+  } as McpServer;
+};
+
 export default mcpPresets;

src/i18n/locales/en.json

@@ -362,7 +362,27 @@
       "enabled": "Enabled",
       "installed": "Installed",
       "docs": "Docs",
-      "requiresEnv": "Requires env"
+      "requiresEnv": "Requires env",
+      "fetch": {
+        "name": "mcp-server-fetch",
+        "description": "Universal HTTP request tool, supports GET/POST and other HTTP methods, suitable for quick API requests and web data scraping"
+      },
+      "time": {
+        "name": "@modelcontextprotocol/server-time",
+        "description": "Time query tool providing current time, timezone conversion, and date calculation features"
+      },
+      "memory": {
+        "name": "@modelcontextprotocol/server-memory",
+        "description": "Knowledge graph memory system supporting entities, relations, and observations to help AI remember important information from conversations"
+      },
+      "sequential-thinking": {
+        "name": "@modelcontextprotocol/server-sequential-thinking",
+        "description": "Sequential thinking tool helping AI break down complex problems into multiple steps for deeper thinking"
+      },
+      "context7": {
+        "name": "@upstash/context7-mcp",
+        "description": "Context7 documentation search tool providing latest library docs and code examples, with higher limits when configured with a key"
+      }
     }
   }
 }

src/i18n/locales/zh.json

@@ -362,7 +362,27 @@
       "enabled": "已启用",
       "installed": "已安装",
       "docs": "文档",
-      "requiresEnv": "需要环境变量"
+      "requiresEnv": "需要环境变量",
+      "fetch": {
+        "name": "mcp-server-fetch",
+        "description": "通用 HTTP 请求工具，支持 GET/POST 等 HTTP 方法，适合快速请求接口/抓取网页数据"
+      },
+      "time": {
+        "name": "@modelcontextprotocol/server-time",
+        "description": "时间查询工具，提供当前时间、时区转换、日期计算等功能"
+      },
+      "memory": {
+        "name": "@modelcontextprotocol/server-memory",
+        "description": "知识图谱记忆系统，支持存储实体、关系和观察，让 AI 记住对话中的重要信息"
+      },
+      "sequentialThinking": {
+        "name": "@modelcontextprotocol/server-sequential-thinking",
+        "description": "顺序思考工具，帮助 AI 将复杂问题分解为多个步骤，逐步深入思考"
+      },
+      "context7": {
+        "name": "@upstash/context7-mcp",
+        "description": "Context7 文档搜索工具，提供最新的库文档和代码示例，配置 key 会有更高限额"
+      }
     }
   }
 }