# Fix Socket.IO Payload Limit

## Issue
The user reported a `413 (Payload Too Large)` error when creating a draft room with a full box of 36 packs. This was caused by the default `maxHttpBufferSize` limit (1MB) in Socket.IO, which is insufficient for the large JSON payload generated by 540 cards (36 packs * 15 cards) with full metadata.

## Resolution
- Modified `src/server/index.ts` to increase `maxHttpBufferSize` to 300MB (3e8 bytes).
- This explicitly sets the limit in the `Server` initialization options.

## Verification
- `tsx watch` should automatically restart the server.
- The new limit allows for massive payloads, covering the requirement for 36+ packs (requested >250MB).