Revert "Remove @larksuite/openclaw-lark dependency and related plugin installation logic, as Feishu is now a built-in extension since OpenClaw 2026.4.11. Update relevant code and documentation to reflect this change."

This reverts commit 5b8a35391d.

electron/api/routes/channels.ts

@@ -25,6 +25,7 @@ import {
 } from '../../utils/agent-config';
 import {
   ensureDingTalkPluginInstalled,
+  ensureFeishuPluginInstalled,
   ensureWeChatPluginInstalled,
   ensureWeComPluginInstalled,
 } from '../../utils/plugin-install';
@@ -1348,7 +1349,14 @@ export async function handleChannelRoutes(
           return true;
         }
       }
-      // Feishu is a built-in extension since OpenClaw 2026.4.11 — no plugin install needed
+      // QQBot is a built-in channel since OpenClaw 3.31 — no plugin install needed
+      if (storedChannelType === 'feishu') {
+        const installResult = await ensureFeishuPluginInstalled();
+        if (!installResult.installed) {
+          sendJson(res, 500, { success: false, error: installResult.warning || 'Feishu plugin install failed' });
+          return true;
+        }
+      }
       if (storedChannelType === OPENCLAW_WECHAT_CHANNEL_TYPE) {
         const installResult = await ensureWeChatPluginInstalled();
         if (!installResult.installed) {