Add EruditePay - A2A blockchain analytics agent

[EruditeIntelligence]

Agent Card: https://bridge.eruditepay.com/.well-known/agent-card.json
A2A Protocol: 0.3.0 | 9 skills | 353 x402 endpoints | 168 MCP tools
Chains: Base, Tron, Bitcoin, XRP, Kaspa
Payment: USDC (Base) + USDT (Tron)
OpenAPI: https://bridge.eruditepay.com/openapi.json