fix: install missing Feishu SDK dependency

- Add npm install for @larksuiteoapi/node-sdk
- Fixes "Cannot find module '@larksuiteoapi/node-sdk'" error
- Required by Feishu plugin for Lark/Feishu API integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Dockerfile

@@ -27,6 +27,9 @@ RUN update-ca-certificates && \
 ENV HOME=/root
 RUN npm install -g openclaw@latest zod --unsafe-perm
 
+# 4.1 安装 Feishu 插件依赖 (openclaw 缺少 peer dependency)
+RUN npm install -g @larksuiteoapi/node-sdk --unsafe-perm
+
 # 5. 设置环境变量
 ENV PORT=7860 \
     OPENCLAW_GATEWAY_MODE=local \