inference-bot
11ae968889
Nathan asked to see a chart. The portal now owns a daily metrics series (metrics_daily, written 03:15 UTC by the portal's own scheduler); this is the first surface to read it. - New route /api/metrics proxies the portal's /admin/metrics/series (admin token stays server-side, same pattern as /api/model-usage). - New Trends tab, added to switchView in the same edit (every view toggled there must be shown/hidden there). Lazy: the series loads on first visit, so the panel's initial load is unchanged. - Metric toggle (Members / Spend / Requests) and period toggle (30 / 90 / all time). Fetched once at the widest range and re-rendered client-side, so the toggles never refetch. - Inline SVG, hand-rolled: no chart library, no CDN, no external dependency. Colours come from the panel's existing CSS vars, so it matches the rest. - Gaps are drawn as gaps. A NULL metric means "not measured" and the line deliberately breaks rather than drawing through a day we never recorded (backfilled members_active is NULL every day, by design). The sub-line says how many days are unmeasured. - Members shows the cumulative total; spend and requests are per-day bars. Verified against the live 55-day series with a node harness running the real page functions: 22 checks, including that a NULL breaks the line into two runs, that no NaN reaches the markup, that the toggles do not refetch, and that the SVG carries no hardcoded hex.