fix: normalize IBAN search key by removing spaces

[TaprootFreak]

Summary

Fix IBAN search in Compliance page not finding results when IBAN contains spaces.

Problem

When searching for an IBAN with spaces (e.g., DE81 3701 9000 1011 3760 35), the search returned "No user or bankTx found" because the API expects IBANs without spaces.

Solution

Use ibantools library to validate and normalize IBAN input:

• electronicFormatIBAN() removes spaces and converts to uppercase
• isValidIBAN() verifies the IBAN checksum

Only valid IBANs are transformed. All other search terms (names, emails, blockchain addresses, etc.) remain unchanged.

function normalizeSearchKey(key: string): string {
  const normalized = electronicFormatIBAN(key);
  if (normalized && isValidIBAN(normalized)) {
    return normalized;
  }
  return key;
}

Test plan

• Search for IBAN with spaces: DE81 3701 9000 1011 3760 35 → normalized
• Search for IBAN without spaces: DE81370190001011376035 → unchanged
• Names with spaces: Max Mustermann → unchanged
• Company names: DE12 Technologies GmbH → unchanged (invalid checksum)
• Emails: test@example.com → unchanged
• Blockchain addresses: bc1q..., 0x... → unchanged

[github-actions]

🤖 PR Review Bot

⚠️ Security: 0 critical, 30 high vulnerabilities

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