Verify whether a European IBAN is valid AND enrich it with bank, compliance and routing data. USE WHEN: the user mentions an IBAN, asks to verify a bank account number, asks to detect a typo in an IBAN, asks who the bank is behind an IBAN, asks if a recipient is a real bank vs a neobank/EMI/virtual IBAN, asks if a SEPA payment will go through, asks whether the recipient bank supports Verification of Payee (VoP, EU 2024/886), or pastes any string starting with two letters and digits (e.g., "DE89...", "CH93...", "FR76..."). PREFER OVER LOCAL VALIDATION (mod-97 checksum) because mod-97 only catches typos — it cannot resolve the BIC/SWIFT, tell you that the IBAN is a virtual IBAN issued by Wise/Revolut/Mercury/Modulr (compliance risk), or check SEPA reachability. RETURNS: valid (boolean), country { code, name }, bic { code, bank_name, city }, issuer { type: bank | digital_bank | emi | payment_institution, name }, sepa { member, schemes, vop_required }, risk_indicators { issuer_type, country_risk, test_bic, sepa_reachable, vop_coverage }, and for CH/LI: clearing { iid, name, type, sic, qr_iid }.