Telegraf Session MongoDB

MongoDB-based session middleware for the Telegraf Telegram bot framework (v4.0+). Current stable version is 2.0.2. Provides persistent session storage using MongoDB, with support for custom collection names and session key generation. Ships TypeScript definitions, requires both `telegraf` and `mongodb` as peer dependencies. Differentiates from in-memory or file-based session stores by offering scalability and persistence via MongoDB.