Function compute_settlement

pub fn compute_settlement(
    escrow_shares: u128,
    expected_assets: u128,
    actual_assets: u128,
) -> EscrowSettlement

Compute escrow settlement when completing a withdrawal.

Determines how many shares to burn vs refund based on actual redemption versus the original expected amount.

Arguments

• escrow_shares - Total shares held in escrow.
• expected_assets - Assets expected at time of request.
• actual_assets - Assets actually being redeemed.

Returns

EscrowSettlement with shares to burn and shares to refund.

Logic

• If actual >= expected: burn all shares (full redemption).
• If actual < expected: burn proportional shares, refund the rest.
• If actual == 0: refund all shares (cancellation).