fix: point SOLANA_RELAY_ENDPOINT to dedicated solana-relay host

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: dylanjeffers

packages/web/src/services/env/env.prod.ts

@@ -68,7 +68,7 @@ export const env: Env = {
   SOLANA_CLUSTER_ENDPOINT:
     'https://carolina-8qh733-fast-mainnet.helius-rpc.com',
   SOLANA_FEE_PAYER_ADDRESS: 'pqx3fvvh6b2eZBfLhTtQ5KxzU3CginmgGTmDCjk8TPP',
-  SOLANA_RELAY_ENDPOINT: 'https://discoveryprovider.audius.co',
+  SOLANA_RELAY_ENDPOINT: 'https://solana-relay.audius.engineering',
   SOLANA_TOKEN_PROGRAM_ADDRESS: 'TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA',
   SOLANA_WEB3_CLUSTER: 'mainnet-beta',
   STRIPE_CLIENT_PUBLISHABLE_KEY: