feat(app-detail): 下载 license 文件移至应用信息卡片，附 SDK 接入引导

- 授权管理页不再显示下载入口
- 应用信息卡片新增 "SDK 接入文件" 行（LICENSE 开通后可见），
  包含下载按钮和 autoInitialize 使用说明

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

tenant-platform/src/views/apps/AppDetailView.vue

@@ -23,6 +23,15 @@
           <el-button link type="warning" @click="openVerifyDialog('RESET_SECRET')">重置</el-button>
         </el-descriptions-item>
         <el-descriptions-item label="简述" :span="2">{{ app.description ?? '-' }}</el-descriptions-item>
+        <el-descriptions-item v-if="isServiceEnabled('LICENSE')" label="SDK 接入文件" :span="2">
+          <div style="display:flex;align-items:center;gap:12px;flex-wrap:wrap">
+            <span style="color:#6b7280;font-size:13px">
+              将 license 文件放入应用的 <code style="background:#f3f4f6;padding:1px 5px;border-radius:3px">assets/xuqm/</code> 目录，
+              调用 <code style="background:#f3f4f6;padding:1px 5px;border-radius:3px">XuqmSDK.autoInitialize(context)</code> 即可完成初始化
+            </span>
+            <el-button size="small" type="primary" @click="downloadLicenseFile">下载 license.xuqm</el-button>
+          </div>
+        </el-descriptions-item>
       </el-descriptions>
     </el-card>
 
@@ -154,9 +163,6 @@
             <el-button v-if="isServiceEnabled('LICENSE')" size="small" type="primary" plain @click="$router.push(`/apps/${app.appKey}/license`)">
               授权管理 →
             </el-button>
-            <el-button v-if="isServiceEnabled('LICENSE')" size="small" @click="downloadLicenseFile">
-              下载 License 文件
-            </el-button>
             <el-button v-else size="small" type="primary" plain @click="openActivationRequest('LICENSE')">
               申请开通
             </el-button>

tenant-platform/src/views/license/LicenseManagementView.vue

@@ -70,7 +70,6 @@
         </div>
 
         <div class="toolbar responsive-toolbar">
-          <el-button v-if="appKey" @click="downloadLicenseFile">下载 License 文件</el-button>
           <el-button @click="loadData" :loading="loading">刷新</el-button>
         </div>
 
@@ -230,30 +229,6 @@ async function reactivateDevice(row: LicenseDevice) {
   loadData()
 }
 
-async function downloadLicenseFile() {
-  const key = appKey.value
-  if (!key) return
-  const res = await appApi.downloadLicenseFile(key)
-  const disposition = res.headers['content-disposition'] as string | undefined
-  const filename = parseFilename(disposition) ?? `${appName.value || key}.xuqmlicense`
-  const url = URL.createObjectURL(res.data)
-  const link = document.createElement('a')
-  link.href = url
-  link.download = filename
-  document.body.appendChild(link)
-  link.click()
-  link.remove()
-  URL.revokeObjectURL(url)
-}
-
-function parseFilename(disposition?: string) {
-  if (!disposition) return null
-  const encoded = disposition.match(/filename\*=UTF-8''([^;]+)/i)?.[1]
-  if (encoded) return decodeURIComponent(encoded)
-  const plain = disposition.match(/filename="?([^";]+)"?/i)?.[1]
-  return plain ? decodeURIComponent(plain) : null
-}
-
 async function checkServiceEnabled(key: string) {
   checkingService.value = true
   serviceEnabled.value = null