Correctness:
- Resume AI now releases ANY assignment (not just the caller's own).
A handoff-assigned thread previously stayed assigned after resume, so
the eligibility gate silently kept the bot muted — Resume was a no-op.
- GET /api/ai/usage: guard days >= 1 (Number(null)===0 is finite, so the
30-day default was unreachable and the window collapsed to 1 day).
- GET /api/ai/usage: align the query cutoff to the start of the oldest
charted local day so rows in the oldest partial day no longer count in
totals while missing from the daily series (totals now match the bars).
- ai-thread-banner: cache account AI-status per accountId and never cache
a transient fetch failure — fixes cross-account leak and the banner
staying hidden all session after one failed /api/ai/config call.
- /api/ai/draft: construct the service-role client inside a guard and
fire-and-forget the usage log, so a missing service-role key (or any
log failure) can't 500 an already-generated, already-billed draft.
Efficiency:
- Don't await usage logging on the reply hot path (auto-reply + draft);
logAiUsage swallows its own errors, so fire-and-forget is safe and
removes a DB round-trip from the customer-facing send.
Reuse / consistency:
- usage route reuses date-utils (daysAgoStart/lastNDayKeys/localDayKey)
and now buckets by LOCAL day like every other dashboard chart (was UTC).
- extract formatCompactNumber (shared with formatCurrencyShort); drop the
hand-rolled month table in favour of date-fns; extract
fetchAccountMembers/memberLabel and use them in the AI settings picker.
Resume still resets the per-conversation reply count (a deliberate,
manual, rate-limited re-engagement — documented in the handler).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Surfaces the ai_usage_log data added in the previous commit:
- GET /api/ai/usage — admin-only aggregation (totals, per-mode,
per-model, zero-filled daily series) over a 7/30/90-day window,
mirroring the ai_usage_log SELECT policy
- AiUsageCard — stat tiles + daily token bar chart + by-model list,
rendered under a new admin-only "Usage" tab on the AI Agents page
Counts only; no message content is stored or shown.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
