[Frontend] [Feature] Handle minting transaction failures in UI

[Tybravo]

🎯 Goal

Catch and display errors if the minting transaction fails on-chain.

📋 Requirements

• Implement the feature as described in the goal.
• Ensure integration matches the architecture defined in SUMMARY_TYPESCRIPT.md.
• Handle relevant loading and error states gracefully.

🔧 Technical Scope

• React State / Error Handling

📂 Affected Path

frontend/features/verification/components/ReadyToMint.tsx

✅ Acceptance Criteria

• Error UI handles failure gracefully.

🔗 PR Requirements

• PR description must include: Closes #[issue_id]