MeshCore firmware sends two capability bytes on ADVERT packets (wire bits
per AdvertDataHelpers.h) whenever the HasFeat1/HasFeat2 flags are set.
CoreScope already decoded them per-packet but discarded them rather than
storing a per-node value.
- New feat1/feat2 columns on nodes/inactive_nodes (internal/dbschema,
idempotent ALTER like the existing multibyte_sup/multibyte_evidence
columns).
- Ingestor's UpdateNodeTelemetry now writes feat1/feat2 alongside
battery_mv/temperature_c in the same COALESCE-based UPDATE, from the
same ADVERT payload.
- Server exposes them on /api/nodes and /api/nodes/{pubkey} (nullable,
same shape as battery_mv/temperature_c).
- Node detail page shows them as raw hex (0x....) in the Overview panel
when present -- undecoded, since CoreScope doesn't know the individual
bit meanings, but no longer silently discarded.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>