Add vIBAN search to compliance endpoint

[TaprootFreak]

Summary

• Add vIBAN search capability to compliance search endpoint (GET /support)
• Search in VirtualIban table by IBAN
• Search in BankTx.virtualIban column
• Include unassigned BankTx with virtualIban in results

Changes

• Add VIBAN to ComplianceSearchType enum
• Import BankModule in SupportModule to access VirtualIbanService
• Add getBankTxsByVirtualIban() method to BankTxService
• Add getUnassignedBankTxByVirtualIban() method to BankTxService
• Extend getUserDatasByKey() to prioritize vIBAN search before normal IBAN search
• Extend searchUserDataByKey() to load unassigned BankTx for vIBAN

Test plan

• Test compliance search with valid vIBAN
• Verify UserData from VirtualIban table is returned
• Verify UserData from BankTx with virtualIban is returned
• Verify unassigned BankTx with virtualIban are included
• Test that normal IBAN search still works for non-vIBAN