xmrclub-social-bot — Telegram support relay for @xmrclub_bot.

Public endpoints:
  GET  /              — this help
  GET  /health        — operator health check (60s cached)
  POST /telegram/webhook (auth: X-Telegram-Bot-Api-Secret-Token)
  POST /notify           (auth: X-Bot-Notify header)

Operator-only (auth: ?key=<SETUP_KEY> or X-Setup-Key header):
  GET  /telegram/setup
  GET  /telegram/setup-commands
  GET  /telegram/setup-description
  GET  /telegram/me