feat: add structured message failure reporting

plugin-src/client/channels/whatsapp/api.js

@@ -1,4 +1,5 @@
 import { normalizeAgentPresetCatalog, normalizeAgentPresetId, SET_AGENT_PRESET_ENDPOINT } from '../../agent-preset.js';
+import { normalizeLastMessageError } from '../../last-message-error.js';
 
 export const WHATSAPP_RPC_CHANNEL = '/whatsapp';
 
@@ -106,6 +107,7 @@ function normalizeBot(value) {
         ? 'WhatsApp Web 关联设备运行正常' : 'WhatsApp 连接尚未就绪'),
       lastCheckedAt: timestamp(value.health?.lastCheckedAt),
     },
+    lastMessageError: normalizeLastMessageError(value.lastMessageError),
     error: isRecord(value.error) ? {
       code: text(value.error.code, 'WHATSAPP_ACCOUNT_ERROR', 80),
       message: text(value.error.message, 'WhatsApp 连接尚未就绪'),

plugin-src/client/channels/whatsapp/index.js

@@ -10,7 +10,11 @@ import {
   EMPTY_AGENT_PRESET_CATALOG,
 } from '../../agent-preset.js';
 import { useWorkspaceSnapshotFence } from '../../workspace-snapshot-fence.js';
-import { BotStatusMeta, ChannelListHeading } from '../../channel-card-meta.js';
+import {
+  BotStatusMeta,
+  ChannelListHeading,
+  LastMessageErrorSummary,
+} from '../../channel-card-meta.js';
 import { installDingtalkStyles } from '../dingtalk/styles.js';
 import {
   WHATSAPP_ENDPOINTS,
@@ -345,6 +349,10 @@ export function WhatsappAccountCard({
               className: 'dim-cardAction', kind: 'danger', onClick: onRequestRemove, disabled: Boolean(busy),
             }, '移除接入')),
           summary ? h('div', { className: 'ddt-summary dim-cardSummary' }, summary) : null,
+          account.lastMessageError ? h(LastMessageErrorSummary, {
+            className: 'ddt-summary',
+            error: account.lastMessageError,
+          }) : null,
           testNotice ? h('div', {
             className: 'ddt-summary dim-cardFeedback',
             role: 'status',