Grounded in the intended use (SIM-drop AP with pre-registered eSIM batch, QR
captive portal, COTS + software UEs, srsRAN+Open5GS, Pi+Android). Phases 0-4 from
proving live core attach through a local SM-DP+ for test eUICCs, and flags the
GSMA-CI trust constraint that rules out arbitrary consumer phones from a
field-local SM-DP+.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>