Adds `radio-usage.sh <site> <band> --ap "<AP name>"`: lists the devices on one AP's band by merging
live clients (stat/sta) with recent association events (wifi_connectivity_event, band-aware), enriched
from ace.user identity. Tags each device steerable vs legacy:
- from events: DUAL (also seen on 5/6 GHz -> steerable) vs NG-ONLY (2.4-only -> legacy/IoT)
- fallback when no event in the (short ~1d) retention window: randomized MAC = modern phone/laptop
(likely 5G/steerable) vs fixed vendor OUI = likely IoT/legacy.
Decision value: steerable -> fix via band-steering/min-RSSI; a legacy/IoT device present argues AGAINST
disabling that 2.4 radio. Needs controller cred for the live BSSID (vap_table) map; honest about the
short event retention. Validated live on Cascades (347, Dining Room).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Howard Enos
80384a79f4