The Verify Patrol button reset its result to empty on every
page load — the operator had to re-click to see the verified
state, even though nothing had changed. This commit adds the
observability layer of the auto-preflight plan: every
RunPatrolToolPreflight result is now cached on the AI Service
and surfaced through /api/settings/ai as patrol_preflight, so
the inline result panel rehydrates on page load with the
most-recent outcome and a "last verified Xs ago" indicator.
Backend: patrolPreflightCache (mutex-guarded) on Service with
defensive-copy CachedPatrolPreflight() accessor; every
RunPatrolToolPreflight branch (success, soft warning, classified
failure, validation early-return) records into the cache.
PatrolPreflightSnapshot projects the cached result onto the
AI settings response. Tests cover both success-then-failure
supersession and the defensive-copy invariant.
Frontend: PatrolPreflightSnapshot type mirrors the wire shape;
hydratePatrolPreflightFromSettings(data) projects the snapshot
into the same response shape the manual button writes;
loadSettings and updateSettings flows call it. The result
panel renders a "last verified Xs ago" line under the
provider/model row when recorded_at_unix is present.
End-to-end smoke verified against deepseek-v4-flash: panel
rehydrates as green "Tool calling verified · last verified
just now" after page reload.
Auto-preflight on save (the trigger half of the resilience
plan) follows in the next commit.
Contracts: ai-runtime, api-contracts, agent-lifecycle (dep),
storage-recovery (dep), frontend-primitives all updated to
reflect the new patrol_preflight surface and hydration
contract. Verification artifacts: settingsArchitecture +
patrolPreflight client tests.
rcourtman
add1096ec8