Review 3DARCH-EP-5 Features

These Features decompose the 3DARCH-EP-5 boundary into non-overlapping user and operator outcomes grounded in the frozen legacy revision.

• 3DARCH-FT-21 — Exchange floor-scoped text conversation
• 3DARCH-FT-22 — Speak with push-to-talk and spatial cues

Documentation approval does not grant Approved for Solution or implementation approval.