refactor: adopt new SDK API (no URLs/token in init, auto version)

- XuqmSDK.init now takes only { appId, debug } — no URLs or appSecret
- Add plugin.json for plugin self-registration
- UpdateSDK._devSetAppVersion(1) as simulator fallback
- UpdatePanel: remove appVersionCode/rnCurrentVersion props,
  use UpdateSDK.getAppVersionCode() and getRegisteredPluginVersion()
- Add .nvmrc (node 22)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.nvmrc

@@ -0,0 +1 @@
+22

App.tsx

@@ -10,18 +10,21 @@ import {
   View,
 } from 'react-native'
 import {SafeAreaProvider, SafeAreaView} from 'react-native-safe-area-context'
-import {ImSDK, type ImEventListener, type ImMessage, type MsgType, XuqmSDK} from '@xuqm/rn-sdk'
+import {ImSDK, type ImEventListener, type ImMessage, type MsgType, UpdateSDK, XuqmSDK} from '@xuqm/rn-sdk'
 import {MessageBubble} from './src/components/MessageBubble'
 import {DEMO_CONTENT, MessageComposer} from './src/components/MessageComposer'
 import {GroupChatPanel} from './src/components/GroupChatPanel'
 import {UpdatePanel} from './src/components/UpdatePanel'
+import pluginMeta from './plugin.json'
+
+// Register this bundle as a plugin so UpdateSDK.checkRnUpdate() knows the current version.
+UpdateSDK.registerPlugin(pluginMeta)
+
+// Dev fallback: set app versionCode for simulators where native module is not linked.
+UpdateSDK._devSetAppVersion(1, '1.0.0')
 
 const APP_ID = 'ak_demo_chat'
-const MODULE_ID = 'chat-home'
-const CURRENT_APP_VERSION_CODE = 1
-const CURRENT_RN_VERSION = '1.0.0'
-const API_BASE_URL = 'https://sentry.xuqinmin.com'
-const IM_WS_URL = 'wss://sentry.xuqinmin.com/ws/im'
+const MODULE_ID = pluginMeta.moduleId
 
 type DemoUser = {id: string; nickname: string}
 
@@ -88,11 +91,7 @@ function DemoConsole() {
   useEffect(() => {
     XuqmSDK.init({
       appId: APP_ID,
-      appKey: APP_ID,
-      appSecret: 'demo-secret-not-used-by-current-services',
-      apiBaseUrl: API_BASE_URL,
-      imWsUrl: IM_WS_URL,
-      debug: true,
+      debug: __DEV__,
     })
   }, [])
 
@@ -210,7 +209,7 @@ function DemoConsole() {
       <Text style={styles.eyebrow}>XuqmGroup RN SDK Demo</Text>
       <Text style={styles.title}>IM · 全消息类型 · 群聊 · App 更新 · 热更新</Text>
       <Text style={styles.subtitle}>
-        连接 {API_BASE_URL}，演示单聊/群聊全消息类型、整包更新和 RN 插件热更新完整流程。
+        演示单聊/群聊全消息类型、整包更新和 RN 插件热更新完整流程。
       </Text>
 
       {/* Section 1: 当前会话 */}
@@ -297,9 +296,7 @@ function DemoConsole() {
       {/* Section 4: 更新演示 */}
       <SectionCard title="4. 更新演示">
         <UpdatePanel
-          appVersionCode={CURRENT_APP_VERSION_CODE}
           rnModuleId={MODULE_ID}
-          rnCurrentVersion={CURRENT_RN_VERSION}
           onLog={appendLog}
         />
       </SectionCard>

plugin.json

@@ -0,0 +1,4 @@
+{
+  "moduleId": "chat-home",
+  "version": "1.0.0"
+}

src/components/UpdatePanel.tsx

@@ -3,9 +3,7 @@ import {Linking, Platform, Pressable, StyleSheet, Text, View} from 'react-native
 import {UpdateSDK} from '@xuqm/rn-sdk'
 
 interface Props {
-  appVersionCode: number
   rnModuleId: string
-  rnCurrentVersion: string
   onLog: (msg: string) => void
 }
 
@@ -17,7 +15,7 @@ interface CheckResult {
   detail: string
 }
 
-export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog}: Props) {
+export function UpdatePanel({rnModuleId, onLog}: Props) {
   const [appStep, setAppStep] = useState<StepStatus>('idle')
   const [rnCheckStep, setRnCheckStep] = useState<StepStatus>('idle')
   const [rnDownloadStep, setRnDownloadStep] = useState<StepStatus>('idle')
@@ -43,12 +41,12 @@ export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog
     reset()
     setAppStep('loading')
     try {
-      const res = await UpdateSDK.checkAppUpdate(appVersionCode)
+      const res = await UpdateSDK.checkAppUpdate()
       if (!res.needsUpdate) {
         setAppResult({
           needsUpdate: false,
           label: '✓ App 已是最新版本',
-          detail: `当前版本码：${appVersionCode}，服务端无更高版本`,
+          detail: `当前版本码：${UpdateSDK.getAppVersionCode()}，服务端无更高版本`,
         })
         setAppStep('ok')
         onLog('App 更新检查：当前最新')
@@ -84,7 +82,7 @@ export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog
 
     let checkInfo: Awaited<ReturnType<typeof UpdateSDK.checkRnUpdate>>
     try {
-      checkInfo = await UpdateSDK.checkRnUpdate(rnModuleId, rnCurrentVersion)
+      checkInfo = await UpdateSDK.checkRnUpdate(rnModuleId)
       if (!checkInfo.needsUpdate) {
         setRnResult({
           needsUpdate: false,
@@ -97,7 +95,7 @@ export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog
       }
       setRnResult({
         needsUpdate: true,
-        label: `↑ 发现插件版本 ${checkInfo.latestVersion}（当前 ${rnCurrentVersion}）`,
+        label: `↑ 发现插件版本 ${checkInfo.latestVersion}（当前 ${UpdateSDK.getRegisteredPluginVersion(rnModuleId)}）`,
         detail: [
           `模块：${rnModuleId}`,
           `平台：${Platform.OS}`,
@@ -169,7 +167,7 @@ export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog
         <Text style={styles.blockTitle}>App 整包更新（APK / IPA）</Text>
         <Text style={styles.blockHint}>
           Android 返回 APK 下载链接，iOS 返回 App Store 跳转。
-          本地版本码写死为 {appVersionCode}。
+          当前版本码由 SDK 自动读取（versionCode={UpdateSDK.getAppVersionCode()}）。
         </Text>
         <StepRow
           step={1}
@@ -192,7 +190,8 @@ export function UpdatePanel({appVersionCode, rnModuleId, rnCurrentVersion, onLog
       <View style={styles.block}>
         <Text style={styles.blockTitle}>RN 插件热更新（JS Bundle）</Text>
         <Text style={styles.blockHint}>
-          模块 <Text style={styles.mono}>{rnModuleId}</Text>，本地版本 <Text style={styles.mono}>{rnCurrentVersion}</Text>。
+          模块 <Text style={styles.mono}>{rnModuleId}</Text>，本地版本{' '}
+          <Text style={styles.mono}>{UpdateSDK.getRegisteredPluginVersion(rnModuleId) ?? '未注册'}</Text>。
           热更新全流程：检查 → 下载 → 缓存至 AsyncStorage。
         </Text>