Deterministic procedure for resolving simultaneous bindings of merchant caps, per-period caps, fleet policy, single-tran

Deterministic procedure for resolving simultaneous bindings of merchant caps, per-period caps, fleet policy, single-transaction ceilings and category limits on one agent payment. Inputs include effective control set, limit values, binding scope, authorization authority, and transaction amount. Thresholds define when a control is exhausted, when overrides escalate, and when payment is rejected. Failure modes include ambiguous precedence rank, conflicting fleet and per-agent limits, stale cap