connect_machines.tags is text[] nullable with no default; the derived
FromRow decoded it as non-Option Vec<String>, so rows with NULL tags
threw "unexpected null" - breaking managed-session reconcile on startup
and the authed Machines list. Hit in production on the v2 cutover.
- Replace the derived FromRow on Machine with a manual impl that decodes
every nullable-non-Option column as Option<T> with unwrap_or_default
(tags, is_elevated, is_persistent, status, timestamps), fixing all six
read sites at once. Public field types unchanged.
- migrations/007: backfill NULL tags to empty array, set DEFAULT '{}',
set NOT NULL (no writer inserts NULL: upsert omits tags, metadata
update binds a non-null array). Idempotent with the prod hot-patch.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Mike Swanson
abc55abb0b