修复用户实测反馈的4处问题：品牌名泄露、修改密码页注释泄露、安全提醒页未居中、群相关行间距

- 品牌名：BASE_APP_NAME 从 "TinodeWeb" 改为 "MeetingIM"（关于页/青少年模式文案不再暴露 Tinode 字样）；
  logo-view.jsx（未选中会话时的空状态）去掉开源模板遗留的 Tinode 主页/GitHub 链接/原始版本号，
  换成品牌图标+"选择一个会话开始聊天"
- personal-settings-view.jsx：删除 ChangePassword 页面里被误当正文渲染的开发注释（提及 Tinode 协议），
  改回真正的代码注释
- base.css：.risk-info-page（安全提醒整页）补 margin:0 auto——原来复用模态弹窗的 .risk-dialog 样式，
  宽屏下整块内容贴左显示，没有居中
- base.css：.group-member-picker/.group-settings-header/.group-member-section-title 的 strong/small
  漏加入既有的 line-height:1.3 覆盖名单，继承通用 button{line-height:2.2rem}，导致群成员列表/群聊设置
  头部的姓名与角色/简介文字行间距异常大、贴底部分割线过近

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

css/base.css

@@ -3955,12 +3955,29 @@ img.channel {
   align-items: center;
   justify-content: center;
   background-color: var(--clr-cyan-50);
-}
-#dummy-view a {
-  text-decoration: none;
-  display: block;
   text-align: center;
 }
+#dummy-view-icon {
+  display: grid;
+  place-items: center;
+  width: 6.5rem;
+  height: 6.5rem;
+  margin: 0 auto 0.8rem;
+  border-radius: 1.2rem;
+  color: #fff;
+  background: #2878d6;
+}
+#dummy-view-icon .material-icons {
+  font-size: 4.2rem;
+}
+#dummy-view h2 {
+  margin: 0;
+  font-size: 1.25rem;
+}
+#dummy-view p {
+  margin: 0.25rem 0 0;
+  color: #777f89;
+}
 
 #image-preview {
   position: absolute;
@@ -9164,7 +9181,8 @@ div.toast.show {
 .group-list strong,
 .group-request-list strong,
 .group-admin-page strong,
-.group-muted-list strong {
+.group-muted-list strong,
+.group-member-picker strong {
   line-height: 1.3;
 }
 
@@ -9176,7 +9194,8 @@ div.toast.show {
 .group-list small,
 .group-request-list small,
 .group-admin-page small,
-.group-muted-list small {
+.group-muted-list small,
+.group-member-picker small {
   margin-top: 0.2rem;
   color: #9299a2;
   font-size: 0.75rem;
@@ -9882,7 +9901,11 @@ div.toast.show {
    自己的 place-items:center 就只剩交叉轴（水平）生效，主轴（垂直）退回 flex-start，
    里面的图标会贴着方块顶部而不是居中。 */
 .group-settings-header > span:not(.group-avatar) { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
-.group-settings-header small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #9299a2; }
+/* Same generic `button { line-height: 2.2rem }` leak as .group-member-picker's rows (see its
+   comment) -- name and description each sat in a ~29px box instead of hugging their own text,
+   reading as far more gap between the two lines than the .15rem `gap` above actually specifies. */
+.group-settings-header strong { line-height: 1.3; }
+.group-settings-header small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #9299a2; line-height: 1.3; }
 
 .group-list > button {
   display: grid;
@@ -10223,11 +10246,13 @@ div.toast.show {
 .group-member-section-title > strong {
   color: #30353c;
   font-size: 1rem;
+  line-height: 1.3;
 }
 
 .group-member-section-title > small {
   margin-left: auto;
   color: #949ba4;
+  line-height: 1.3;
 }
 
 .group-settings section > .group-member-grid {
@@ -10540,11 +10565,6 @@ div.toast.show {
   flex-direction: column;
 }
 
-.group-member-picker small {
-  margin-top: 0.2rem;
-  color: #9299a2;
-}
-
 .group-check {
   display: grid;
   place-items: center;
@@ -13808,6 +13828,16 @@ div.toast.show {
   text-align: center;
 }
 
+/* .risk-dialog was designed as a modal card, centered by .risk-overlay's place-items:center wrapper
+   (RiskConfirmDialog). FraudAwareness reuses the same class directly as .support-page's <main> (no
+   overlay wrapper, no explicit height on the page unlike a modal) to pick up its ul/li/aside/button
+   styling -- but .support-page is a plain flex column with no centering of its own, so the capped
+   width left the whole page pinned to the left edge on anything wider than ~25rem instead of centered
+   like every other support-page/group-page/people-page in the app. */
+.risk-info-page {
+  margin: 0 auto;
+}
+
 .risk-symbol {
   display: grid;
   place-items: center;

src/config.js

@@ -1,7 +1,8 @@
 import { PACKAGE_VERSION } from './version.js';
 
-// Version-independent name of this application, used for Firebase app name.
+// Version-independent name of this application, used for Firebase app name and shown to users
-export const BASE_APP_NAME = 'TinodeWeb';
+// (about page, youth-mode copy).
+export const BASE_APP_NAME = 'MeetingIM';
 // Name of this application, used in the User-Agent.
 export const APP_NAME = BASE_APP_NAME + '/' + (PACKAGE_VERSION || '0.25');
 

src/views/logo-view.jsx

@@ -1,25 +1,18 @@
-/* This is just a static page to display when no conversation is selected. */
+/* Static placeholder shown in the message pane when no conversation is selected. */
 import React from 'react';
-import { FormattedMessage } from 'react-intl';
 
-import { Tinode } from 'tinode-sdk';
+import { BASE_APP_NAME } from '../config.js';
 
-import { APP_NAME } from '../config.js';
+function Icon({children}) { return <i className="material-icons" aria-hidden="true">{children}</i>; }
 
 export default class LogoView extends React.PureComponent {
   render() {
-    const version = APP_NAME + ' (' + Tinode.getLibrary() + ')';
     return (
       <div id="dummy-view">
         <div>
-          <a href="https://github.com/tinode/chat/">
+          <span id="dummy-view-icon"><Icon>forum</Icon></span>
-            <img id="logo" alt="logo" src="img/logo.svg" />
+          <h2>{BASE_APP_NAME}</h2>
-            <h2>Tinode Web</h2>
+          <p>选择一个会话开始聊天</p>
-          </a>
-          <p><FormattedMessage id="label_client" defaultMessage="Client:"
-            description="Label for a client version" /> {version}</p>
-          <p><FormattedMessage id="label_server" defaultMessage="Server:"
-            description="Label for a server version" /> {this.props.serverVersion} ({this.props.serverAddress})</p>
         </div>
       </div>
     );

src/views/messages-view.jsx

@@ -2127,9 +2127,7 @@ class MessagesView extends React.Component {
 
     let component;
     if (!this.state.topic) {
-      component = <LogoView
+      component = <LogoView />;
-          serverVersion={this.props.serverVersion}
-          serverAddress={this.props.serverAddress} />;
 
     } else {
       let component2;

src/views/personal-settings-view.jsx

@@ -395,6 +395,8 @@ function ClearHistoryConfirm({tinode, chatList, onToast}) {
 // (Tinode.updateAccountBasic), already wired end-to-end via tinode-web.jsx's
 // handleUpdatePasswordRequest/onUpdatePassword prop (used today by the old acc-security-view.jsx).
 // Reusing that verified callback here instead of reimplementing the WS call.
+// The server-side account-update call never checks the caller's current password -- "原密码" below
+// is a frontend-only speed bump against fat-fingering this field, not a real credential check.
 function ChangePassword({onUpdatePassword, onToast}) {
   const [oldPwd, setOldPwd] = React.useState('');
   const [newPwd, setNewPwd] = React.useState('');
@@ -421,7 +423,6 @@ function ChangePassword({onUpdatePassword, onToast}) {
     <label><span>原密码</span><input type="password" value={oldPwd} onChange={e => setOldPwd(e.target.value)} placeholder="请输入当前密码" /></label>
     <label><span>新密码</span><input type="password" value={newPwd} onChange={e => setNewPwd(e.target.value)} placeholder="至少6位" /></label>
     <label><span>确认新密码</span><input type="password" value={confirmPwd} onChange={e => setConfirmPwd(e.target.value)} placeholder="再次输入新密码" /></label>
-    <p>Tinode 协议本身不会在服务端校验"原密码"，这里的原密码输入是前端自己加的一道二次确认，防止误触。</p>
   </main></div>;
 }
 

umd/index.dev.js

@@ -2358,7 +2358,7 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony export */ });
 /* harmony import */ var _version_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./version.js */ "./src/version.js");
 
-const BASE_APP_NAME = 'TinodeWeb';
+const BASE_APP_NAME = 'MeetingIM';
 const APP_NAME = BASE_APP_NAME + '/' + (_version_js__WEBPACK_IMPORTED_MODULE_0__.PACKAGE_VERSION || '0.25');
 const API_KEY = "AQAAAAABAAAoeOI7tA3HsYvdzDhYhZJy" || 0;
 const KNOWN_HOSTS = {
@@ -15741,9 +15741,7 @@ function ChangePassword({
           onChange: e => setConfirmPwd(e.target.value),
           placeholder: "再次输入新密码"
         }, void 0, false)]
-      }, void 0, true), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_7__.jsxDEV)("p", {
+      }, void 0, true)]
-        children: "Tinode 协议本身不会在服务端校验\"原密码\"，这里的原密码输入是前端自己加的一道二次确认，防止误触。"
-      }, void 0, false)]
     }, void 0, true)]
   }, void 0, true);
 }

umd/src_views_messages-view_jsx.dev.js

@@ -13,45 +13,35 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony export */ });
 /* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ "react");
 /* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(react__WEBPACK_IMPORTED_MODULE_0__);
-/* harmony import */ var react_intl__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! react-intl */ "react-intl");
+/* harmony import */ var _config_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../config.js */ "./src/config.js");
-/* harmony import */ var react_intl__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(react_intl__WEBPACK_IMPORTED_MODULE_1__);
+/* harmony import */ var react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! react/jsx-dev-runtime */ "./node_modules/react/jsx-dev-runtime.js");
-/* harmony import */ var tinode_sdk__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! tinode-sdk */ "tinode-sdk");
-/* harmony import */ var tinode_sdk__WEBPACK_IMPORTED_MODULE_2___default = /*#__PURE__*/__webpack_require__.n(tinode_sdk__WEBPACK_IMPORTED_MODULE_2__);
-/* harmony import */ var _config_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ../config.js */ "./src/config.js");
-/* harmony import */ var react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__ = __webpack_require__(/*! react/jsx-dev-runtime */ "./node_modules/react/jsx-dev-runtime.js");
-
-
 
 
 
+function Icon({
+  children
+}) {
+  return (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("i", {
+    className: "material-icons",
+    "aria-hidden": "true",
+    children: children
+  }, void 0, false);
+}
 class LogoView extends (react__WEBPACK_IMPORTED_MODULE_0___default().PureComponent) {
   render() {
-    const version = _config_js__WEBPACK_IMPORTED_MODULE_3__.APP_NAME + ' (' + tinode_sdk__WEBPACK_IMPORTED_MODULE_2__.Tinode.getLibrary() + ')';
+    return (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("div", {
-    return (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("div", {
       id: "dummy-view",
-      children: (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("div", {
+      children: (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("div", {
-        children: [(0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("a", {
+        children: [(0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("span", {
-          href: "https://github.com/tinode/chat/",
+          id: "dummy-view-icon",
-          children: [(0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("img", {
+          children: (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)(Icon, {
-            id: "logo",
+            children: "forum"
-            alt: "logo",
+          }, void 0, false)
-            src: "img/logo.svg"
+        }, void 0, false), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("h2", {
-          }, void 0, false), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("h2", {
+          children: _config_js__WEBPACK_IMPORTED_MODULE_1__.BASE_APP_NAME
-            children: "Tinode Web"
+        }, void 0, false), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_2__.jsxDEV)("p", {
-          }, void 0, false)]
+          children: "选择一个会话开始聊天"
-        }, void 0, true), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("p", {
+        }, void 0, false)]
-          children: [(0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)(react_intl__WEBPACK_IMPORTED_MODULE_1__.FormattedMessage, {
-            id: "label_client",
-            defaultMessage: "Client:",
-            description: "Label for a client version"
-          }, void 0, false), " ", version]
-        }, void 0, true), (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)("p", {
-          children: [(0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_4__.jsxDEV)(react_intl__WEBPACK_IMPORTED_MODULE_1__.FormattedMessage, {
-            id: "label_server",
-            defaultMessage: "Server:",
-            description: "Label for a server version"
-          }, void 0, false), " ", this.props.serverVersion, " (", this.props.serverAddress, ")"]
-        }, void 0, true)]
       }, void 0, true)
     }, void 0, false);
   }
@@ -1841,10 +1831,7 @@ class MessagesView extends (react__WEBPACK_IMPORTED_MODULE_0___default().Compone
     }, void 0, false);
     let component;
     if (!this.state.topic) {
-      component = (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_22__.jsxDEV)(_logo_view_jsx__WEBPACK_IMPORTED_MODULE_10__["default"], {
+      component = (0,react_jsx_dev_runtime__WEBPACK_IMPORTED_MODULE_22__.jsxDEV)(_logo_view_jsx__WEBPACK_IMPORTED_MODULE_10__["default"], {}, void 0, false);
-        serverVersion: this.props.serverVersion,
-        serverAddress: this.props.serverAddress
-      }, void 0, false);
     } else {
       let component2;
       if (this.state.imagePreview) {