How does Toccata allow Kaspa's base layer to enforce application rules?

After the Toccata hardfork, developers can build stateful applications whose rules are enforced by Kaspa's base-layer consensus rather than by a trusted server or bridge. A stateful application is one that tracks ongoing state — for example, token balances, ownership records, or game progress — and applies rules to every update. Before Toccata, enforcing those rules on Kaspa would have required trusting a centralized party. After Toccata, the consensus layer itself acts as the rule enforcer, which means no single operator can change the application's logic or override its state. For a beginner, this means applications built on Kaspa after Toccata come with guarantees that are backed by the same security as the chain itself.