fn is_locked(env: soroban_sdk::Env, loan_id: u64) -> boolOne-time setup. Only settlement engine may lock/release collateral.
fn initialize(
env: soroban_sdk::Env,
admin: soroban_sdk::Address,
settlement_engine: soroban_sdk::Address,
) -> Result<(), ProtocolError>Lock borrower's collateral into escrow when a loan is matched.
fn lock_collateral(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
loan_id: u64,
borrower: soroban_sdk::Address,
token: soroban_sdk::Address,
amount: i128,
) -> Result<(), CollateralVaultError>Transfer collateral to recipient on default (direct claim or liquidator). Returns the collateral token address and amount transferred.
fn claim_collateral(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
loan_id: u64,
recipient: soroban_sdk::Address,
) -> Result<(soroban_sdk::Address, i128), CollateralVaultError>Release collateral back to borrower on successful repayment.
fn release_collateral(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
loan_id: u64,
recipient: soroban_sdk::Address,
) -> Result<(), CollateralVaultError>fn get_collateral_token(
env: soroban_sdk::Env,
loan_id: u64,
) -> Resultfn get_collateral_amount(
env: soroban_sdk::Env,
loan_id: u64,
) -> Result