feat: webUI MCP 可视化配置面板 + README 更新

pi-web/lib/i18n/messages/zh-CN.ts

@@ -8,6 +8,7 @@ export const zhCNLocale: LocalePlugin = {
     "common.ok": "确定",
     "common.language": "语言",
     "common.models": "模型",
+    "common.mcp": "MCP",
     "common.skills": "技能",
     "common.plugins": "插件",
     "sidebar.hide": "隐藏侧边栏",
@@ -236,6 +237,27 @@ export const zhCNLocale: LocalePlugin = {
     "chat.commandCopy": "复制最后一条助手消息",
     "chat.compacted": "已压缩",
     "chat.tokensSaved": "节省 {saved}",
+    "mcp.addServer": "添加服务器",
+    "mcp.addEnv": "添加环境变量",
+    "mcp.serverName": "服务器名称",
+    "mcp.enabled": "启用",
+    "mcp.transport": "传输方式",
+    "mcp.command": "命令",
+    "mcp.args": "参数（每行一个）",
+    "mcp.url": "URL",
+    "mcp.headers": "请求头（JSON）",
+    "mcp.auth": "认证",
+    "mcp.bearerToken": "Bearer token",
+    "mcp.cwd": "工作目录",
+    "mcp.lifecycle": "生命周期",
+    "mcp.idleTimeout": "空闲超时（分钟）",
+    "mcp.requestTimeout": "请求超时（毫秒）",
+    "mcp.advanced": "高级（原始 JSON）",
+    "mcp.applyJson": "应用 JSON",
+    "mcp.invalidJson": "JSON 无效",
+    "mcp.noServers": "未配置 MCP 服务器",
+    "mcp.selectServer": "选择一个服务器进行编辑",
+    "mcp.restartHint": "保存的更改在重启 pi（或 /reload）后生效。",
     "i18n.close": "关闭",
     "i18n.copy": "复制",
     "i18n.copied": "已复制",