fix frontend wechat oauth capability recovery

frontend/src/components/user/profile/ProfileIdentityBindingsSection.vue

@@ -52,7 +52,11 @@
 import { computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { useRoute } from 'vue-router'
-import { resolveWeChatOAuthStart, type WeChatOAuthPublicSettings } from '@/api/auth'
+import {
+  hasExplicitWeChatOAuthCapabilities,
+  resolveWeChatOAuthStartStrict,
+  type WeChatOAuthPublicSettings,
+} from '@/api/auth'
 import { startOAuthBinding } from '@/api/user'
 import { useAppStore } from '@/stores'
 import type { User, UserAuthBindingStatus, UserAuthProvider } from '@/types'
@@ -82,15 +86,11 @@ const route = useRoute()
 const appStore = useAppStore()
 
 const wechatOAuthSettings = computed<WeChatOAuthPublicSettings | null>(() => {
-  if (appStore.cachedPublicSettings) {
+  if (hasExplicitWeChatOAuthCapabilities(appStore.cachedPublicSettings)) {
     return appStore.cachedPublicSettings
   }
 
-  if (
-    typeof props.wechatEnabled === 'boolean' ||
-    typeof props.wechatOpenEnabled === 'boolean' ||
-    typeof props.wechatMpEnabled === 'boolean'
-  ) {
+  if (typeof props.wechatOpenEnabled === 'boolean' && typeof props.wechatMpEnabled === 'boolean') {
     return {
       wechat_oauth_enabled: props.wechatEnabled,
       wechat_oauth_open_enabled: props.wechatOpenEnabled,
@@ -101,7 +101,7 @@ const wechatOAuthSettings = computed<WeChatOAuthPublicSettings | null>(() => {
   return null
 })
 
-const resolvedWeChatBinding = computed(() => resolveWeChatOAuthStart(wechatOAuthSettings.value))
+const resolvedWeChatBinding = computed(() => resolveWeChatOAuthStartStrict(wechatOAuthSettings.value))
 
 function normalizeBindingStatus(binding: boolean | UserAuthBindingStatus | undefined): boolean | null {
   if (typeof binding === 'boolean') {

frontend/src/components/user/profile/ProfileInfoCard.vue

@@ -133,6 +133,8 @@
         :oidc-enabled="oidcEnabled"
         :oidc-provider-name="oidcProviderName"
         :wechat-enabled="wechatEnabled"
+        :wechat-open-enabled="wechatOpenEnabled"
+        :wechat-mp-enabled="wechatMpEnabled"
       />
     </div>
   </div>
@@ -156,12 +158,16 @@ const props = withDefaults(
     oidcEnabled?: boolean
     oidcProviderName?: string
     wechatEnabled?: boolean
+    wechatOpenEnabled?: boolean
+    wechatMpEnabled?: boolean
   }>(),
   {
     linuxdoEnabled: false,
     oidcEnabled: false,
     oidcProviderName: 'OIDC',
     wechatEnabled: false,
+    wechatOpenEnabled: undefined,
+    wechatMpEnabled: undefined,
   }
 )
 

frontend/src/components/user/profile/__tests__/ProfileIdentityBindingsSection.spec.ts

@@ -100,6 +100,8 @@ describe('ProfileIdentityBindingsSection', () => {
         oidcEnabled: true,
         oidcProviderName: 'ExampleID',
         wechatEnabled: true,
+        wechatOpenEnabled: true,
+        wechatMpEnabled: false,
       },
     })
 
@@ -152,4 +154,74 @@ describe('ProfileIdentityBindingsSection', () => {
 
     expect(wrapper.find('[data-testid="profile-binding-wechat-action"]').exists()).toBe(false)
   })
+
+  it('hides the WeChat bind action when only the legacy aggregate setting is present', () => {
+    const wrapper = mount(ProfileIdentityBindingsSection, {
+      global: {
+        plugins: [pinia],
+      },
+      props: {
+        user: createUser(),
+        linuxdoEnabled: false,
+        oidcEnabled: false,
+        wechatEnabled: true,
+      },
+    })
+
+    expect(wrapper.find('[data-testid="profile-binding-wechat-action"]').exists()).toBe(false)
+  })
+
+  it('uses explicit cached WeChat capabilities and ignores legacy prop fallbacks', () => {
+    const appStore = useAppStore()
+    appStore.cachedPublicSettings = {
+      registration_enabled: false,
+      email_verify_enabled: false,
+      force_email_on_third_party_signup: false,
+      registration_email_suffix_whitelist: [],
+      promo_code_enabled: true,
+      password_reset_enabled: false,
+      invitation_code_enabled: false,
+      turnstile_enabled: false,
+      turnstile_site_key: '',
+      site_name: 'Sub2API',
+      site_logo: '',
+      site_subtitle: '',
+      api_base_url: '',
+      contact_info: '',
+      doc_url: '',
+      home_content: '',
+      hide_ccs_import_button: false,
+      payment_enabled: false,
+      table_default_page_size: 20,
+      table_page_size_options: [10, 20, 50, 100],
+      custom_menu_items: [],
+      custom_endpoints: [],
+      linuxdo_oauth_enabled: false,
+      wechat_oauth_enabled: true,
+      wechat_oauth_open_enabled: true,
+      wechat_oauth_mp_enabled: false,
+      oidc_oauth_enabled: false,
+      oidc_oauth_provider_name: 'OIDC',
+      backend_mode_enabled: false,
+      version: 'test',
+      balance_low_notify_enabled: false,
+      account_quota_notify_enabled: false,
+      balance_low_notify_threshold: 0,
+    }
+    appStore.publicSettingsLoaded = true
+
+    const wrapper = mount(ProfileIdentityBindingsSection, {
+      global: {
+        plugins: [pinia],
+      },
+      props: {
+        user: createUser(),
+        linuxdoEnabled: false,
+        oidcEnabled: false,
+        wechatEnabled: true,
+      },
+    })
+
+    expect(wrapper.find('[data-testid="profile-binding-wechat-action"]').exists()).toBe(true)
+  })
 })