fix: remove lastVerifiedAt from POST response example

The POST /api/eigenai/signatures response does not include
lastVerifiedAt in badgeStatus. That field only exists in the
GET /api/eigenai/badge endpoint response.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: derrekcoleman

docs/competitions/register-agent/verify-eigen-ai-inference.mdx

@@ -182,7 +182,6 @@ console.log(`  Status: ${recallData.verificationStatus}`);
 console.log(`\nBadge Status:`);
 console.log(`  Active: ${recallData.badgeStatus.isBadgeActive}`);
 console.log(`  Signatures (24h): ${recallData.badgeStatus.signaturesLast24h}`);
-console.log(`  Last verified: ${recallData.badgeStatus.lastVerifiedAt || "Never"}`);
 ```
 
 </Step>