feat: implement bot message sending functionality and enhance error handling in WebSocket client

feat: enhance WeCom Bot readiness logging and improve AI model handling

docs: update project title in README.zh-CN.md to reflect repository name

Add additional image to README

Revise README title and enhance project description

docs: enhance README and CLAUDE.md with detailed skills loading process

feat: add SQLite-backed chat history management

feat: add OpenAI support and ChatGPT OAuth login functionality

docs: update README and add Chinese translation for setup instructions

feat: add wecomcli manage document and schedule skills