Constant REQUIRED_RESIDENT_BYTES 

pub const REQUIRED_RESIDENT_BYTES: u64 = u64::MAX; // 18_446_744_073_709_551_615u64

The HRX runtime publishes no finite upper bound for a loaded program’s device residency.

Requiring the maximal charge keeps the provider promise truthful: a process cannot retain u64::MAX bytes for one program. Device integrations set their aggregate program-residency policy accordingly when admitting an XDNA program. Mirrors the OpenVINO backend, whose runtime has the same property.