- Use certifi CA bundle for aiohttp SSL in qr_login(), start(), and
send_weixin_direct() to fix SSL verification failures against
Tencent's iLink server on macOS (Homebrew OpenSSL lacks system certs)
- Fix QR code data: encode qrcode_img_content (full liteapp URL) instead
of raw hex token — WeChat needs the full URL to resolve the scan
- Render ASCII QR on refresh so the user can re-scan without restarting
- Improve error message on QR render failure to show the actual exception
Tested on macOS (Apple Silicon, Homebrew Python 3.13)
3a0ec1d935