Email Bridge Service

Available Endpoints:

• POST /api/v1/register - Register a new user
• POST /api/v1/login - User login
• GET /api/v1/messages - Get message list (requires auth)
  Query params: limit, offset, prefix, show_read (true/false)
• DELETE /api/v1/messages/{id} - Delete a message (requires auth)
• PUT /api/v1/messages/{id}/read - Mark a message as read (requires auth)
• POST /api/v1/messages/{id}/reply - Reply to a message (requires auth)
  Body: {"text": "reply content", "html": "optional html", "subject": "optional custom subject"}
• GET /api/v1/unread - Get unread message count
  Query params: to (email), from (email)
• POST /api/v1/send-email - Send email
  Body: {"to": "email", "from": "sender@tai.chat", "subject": "...", "message": "..."}
• GET /health - Health check