531b1d3186
Persistent boolean flag for the cached IssuerAuth verify result. Field sits beside accessDocumentFinalized in writeTo/readFrom (FIELD_VERSION bumped 1->2 -- schema change requires re-personalize). reset() clears. Test pins the serialize/deserialize round-trip via the existing RecordingSink/ReplaySource helpers. Foundation for M2A.2 (CoseVerifier) and M2A.3 (verify-at-finalize wiring).