The inventory read when mobile_has_content is set overwrote one
attribute per field, never loaded its power action list and had no
save or JSON methods. InstanceInfo follows InstanceInfo_ctorFromStream
(sb.exe 0x674810); field names come from InstanceInfo::ParseKeyword
(0x66FA60). Power action entries (0x54F680) keep the item power action
id/arguments layout; their remaining fields are unknownN.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>