fix(push-config): 按平台过滤厂商凭据展示

切换平台时只展示对应平台的厂商：
- Android：小米、华为、荣耀、OPPO、VIVO
- iOS：APNs
- HarmonyOS：鸿蒙 Push Kit

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

tenant-platform/src/views/push/PushConfigView.vue

@@ -36,7 +36,7 @@
     <el-card style="margin-bottom:16px">
       <template #header>厂商凭据</template>
       <div class="vendor-grid">
-        <el-card v-for="vendor in vendorDefs" :key="vendor.key" shadow="never" class="vendor-card">
+        <el-card v-for="vendor in filteredVendorDefs" :key="vendor.key" shadow="never" class="vendor-card">
           <template #header>{{ vendor.label }}</template>
           <div class="vendor-hint">{{ vendor.hint }}</div>
           <el-form :label-position="isMobile ? 'top' : 'right'" label-width="110px">
@@ -201,7 +201,7 @@
 </template>
 
 <script setup lang="ts">
-import { onBeforeUnmount, onMounted, reactive, ref } from 'vue'
+import { computed, onBeforeUnmount, onMounted, reactive, ref } from 'vue'
 import { useRoute } from 'vue-router'
 import { CopyDocument } from '@element-plus/icons-vue'
 import { ElMessage } from 'element-plus'
@@ -247,6 +247,7 @@ type VendorDef = {
   label: string
   hint: string
   fields: FieldDef[]
+  platforms: Array<'ANDROID' | 'IOS' | 'HARMONY'>
 }
 
 type PushConfigState = {
@@ -317,6 +318,7 @@ const vendorDefs: VendorDef[] = [
     key: 'xiaomi',
     label: '小米 MiPush',
     hint: '这里仅填写厂商凭据。Channel ID 放在 profiles 中按场景单独配置，支持后续补充或删除。',
+    platforms: ['ANDROID'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'appKey', label: 'AppKey' },
@@ -327,6 +329,7 @@ const vendorDefs: VendorDef[] = [
     key: 'huawei',
     label: '华为 HMS',
     hint: '仅保留厂商账号信息。Category、Channel ID、重要性等由 profiles 负责。',
+    platforms: ['ANDROID'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'appSecret', label: 'AppSecret' },
@@ -336,6 +339,7 @@ const vendorDefs: VendorDef[] = [
     key: 'honor',
     label: '荣耀 Push',
     hint: '荣耀账号凭据。业务场景与展示策略在 profiles 中配置。',
+    platforms: ['ANDROID'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'clientId', label: 'ClientId' },
@@ -346,6 +350,7 @@ const vendorDefs: VendorDef[] = [
     key: 'oppo',
     label: 'OPPO 推送',
     hint: '仅保留 AppKey / MasterSecret。通道配置与优先级在 profiles 中维护。',
+    platforms: ['ANDROID'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'appKey', label: 'AppKey' },
@@ -356,6 +361,7 @@ const vendorDefs: VendorDef[] = [
     key: 'vivo',
     label: 'vivo 推送',
     hint: '厂商凭据与业务分类分离。classification 由 profiles 的 Category 驱动。',
+    platforms: ['ANDROID'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'appKey', label: 'AppKey' },
@@ -366,6 +372,7 @@ const vendorDefs: VendorDef[] = [
     key: 'harmony',
     label: '鸿蒙 Push Kit',
     hint: '鸿蒙厂商凭据。需要的 Category / Channel ID 放到 profiles 中。',
+    platforms: ['HARMONY'],
     fields: [
       { key: 'appId', label: 'AppId' },
       { key: 'appSecret', label: 'AppSecret' },
@@ -375,6 +382,7 @@ const vendorDefs: VendorDef[] = [
     key: 'apns',
     label: 'iOS APNs',
     hint: 'Team ID / Key ID / Bundle ID / 私钥统一放这里。Badge、Thread ID、Interruption Level 放在 profiles 中。',
+    platforms: ['IOS'],
     fields: [
       { key: 'teamId', label: 'Team ID' },
       { key: 'keyId', label: 'Key ID' },
@@ -385,6 +393,10 @@ const vendorDefs: VendorDef[] = [
   },
 ]
 
+const filteredVendorDefs = computed(() =>
+  vendorDefs.filter(v => v.platforms.includes(selectedPlatform.value)),
+)
+
 function updateViewport() {
   isMobile.value = window.innerWidth < 768
 }