Build WebSocket Server for Real-Time Match Updates

[famvilianity-eng]

Title: Implement WebSocket Server for Real-Time Match Status Updates

Description: The frontend needs real-time updates when matches are created, players deposit, or results are submitted. Build a WebSocket server that pushes these events.

Requirements and Context:

• Real-time events: match created, deposit confirmed, result submitted
• Subscribe to specific match IDs or player address
• Automatic reconnect with exponential backoff
• Security: Validate subscriptions (no unauthorized data access)
• Performance: Support 1000+ concurrent connections

Suggested Execution: feature/realtime-websocket-server

Implement Changes:

• Create WebSocket server in Node.js/TypeScript
• Implement subscription filtering by match ID and player
• Add connection pooling and heartbeat
• Build React hook for WebSocket connections

Test and Commit:

• Unit tests for subscription filtering
• Load tests with 1000+ concurrent connections
• Integration tests with event indexer
• Document WebSocket API in /docs

Example Commit Message:

feat: add WebSocket server for real-time match updates

- Implement WebSocket server with subscription filtering
- Add automatic reconnect with exponential backoff
- Support 1000+ concurrent connections
- Include comprehensive connection and load tests

Guidelines:

• Add rate limiting for subscriptions per client
• Log disconnection reasons
• Document WebSocket protocol version

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