refactor(channels): reuse runtime group policy helpers

extensions/feishu/src/bot.ts

@@ -7,6 +7,7 @@ import {
   type HistoryEntry,
   recordPendingHistoryEntryIfEnabled,
   resolveOpenProviderRuntimeGroupPolicy,
+  resolveDefaultGroupPolicy,
   warnMissingProviderGroupPolicyFallbackOnce,
 } from "openclaw/plugin-sdk";
 import { resolveFeishuAccount } from "./accounts.js";
@@ -565,7 +566,7 @@ export async function handleFeishuMessage(params: {
   const useAccessGroups = cfg.commands?.useAccessGroups !== false;
 
   if (isGroup) {
-    const defaultGroupPolicy = cfg.channels?.defaults?.groupPolicy;
+    const defaultGroupPolicy = resolveDefaultGroupPolicy(cfg);
     const { groupPolicy, providerMissingFallbackApplied } = resolveOpenProviderRuntimeGroupPolicy({
       providerConfigPresent: cfg.channels?.feishu !== undefined,
       groupPolicy: feishuCfg?.groupPolicy,