Establishes a docs/adr convention and records the naming-migration decision:
interaction-centric Iios-prefixed vocabulary as canonical, support as a
namespaced specialization (KG-16), @insignia/iios-* package scope, and a
greenfield-and-deprecate (strangler) migration off the legacy support-service.
Includes the legacy→IIOS naming map.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
