feat: 按机器人选择 Agent Preset

在九个渠道的设置页卡片上选择 Host 已有预设；未选则跟随默认，只影响之后新建的会话。

Co-authored-by: Cursor <cursoragent@cursor.com>

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

@@ -1,3 +1,5 @@
+import { normalizeAgentPresetCatalog, normalizeAgentPresetId, SET_AGENT_PRESET_ENDPOINT } from '../../agent-preset.js';
+
 export const WECOM_RPC_CHANNEL = '/wecom';
 
 export const WECOM_ENDPOINTS = Object.freeze({
@@ -9,6 +11,7 @@ export const WECOM_ENDPOINTS = Object.freeze({
   reconnectBot: 'bot.reconnect',
   deleteBot: 'bot.delete',
   setWorkspace: 'bot.workspace.set',
+  setAgentPreset: SET_AGENT_PRESET_ENDPOINT,
 });
 
 const PROVISION_STATES = new Set(['starting', 'pending', 'refreshing', 'connecting', 'connected', 'failed', 'cancelled']);
@@ -91,6 +94,7 @@ function normalizeBot(value) {
     connected,
     state: connected ? 'connected' : state,
     workspace: text(value.workspace, '', 4_096),
+    agentPreset: normalizeAgentPresetId(value.agentPreset),
     bot: {
       name: text(value.bot?.name, '企业微信机器人', 100),
       appIdMasked: text(value.bot?.appIdMasked, '应用标识已安全保存', 140),
@@ -116,6 +120,7 @@ export function normalizeSnapshot(value) {
     totals: { configured: bots.length, connected: bots.filter((bot) => bot.connected).length },
     provisioning: source.provisioning ? normalizeProvisioning(source.provisioning) : null,
     testMessage: normalizeTestMessage(source.testMessage),
+    agentPresetCatalog: normalizeAgentPresetCatalog(source.agentPresetCatalog),
   };
 }