Constant MAX_PATTERN_NFA_STATES 

const MAX_PATTERN_NFA_STATES: u64 = 100_000;

Decode-side re-statement of the binder’s MAX_PATTERN_NFA_STATES.

The two caps above bound each construct individually, which is not enough: nesting multiplies. (a{1000}){1000} satisfies both and still expands to ~10^6 states, allocated by Nfa::compile on the compute node while the actor is built. Only reachable from a corrupt or skewed plan — which is precisely what this layer exists to survive.