feat: add structured message failure reporting

plugin-src/client/channels/wecom/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 WECOM_RPC_CHANNEL = '/wecom';
 
@@ -103,6 +104,7 @@ function normalizeBot(value) {
       summary: text(value.health?.summary, connected ? '企业微信 WebSocket 长连接运行正常' : '企业微信连接尚未就绪'),
       lastCheckedAt: timestamp(value.health?.lastCheckedAt),
     },
+    lastMessageError: normalizeLastMessageError(value.lastMessageError),
     error: isRecord(value.error) ? {
       code: text(value.error.code, 'WECOM_ACCOUNT_ERROR', 80),
       message: text(value.error.message, '企业微信连接尚未就绪'),

plugin-src/client/channels/wecom/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 {
   WECOM_ENDPOINTS,
@@ -200,6 +204,10 @@ export function AccountCard({
             h(Button, { className: 'dim-cardAction', onClick: onReconnect, disabled: Boolean(busy) }, busy === 'reconnect' ? '检查中…' : account.connected ? '检查连接' : '重试连接'),
             h(Button, { 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,
           feedback ? h('div', {
             className: 'ddt-summary dim-cardFeedback',
             role: 'status',