feat(dashboard): traffic-aware latest values for cw_traffic2 - #80
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…traffic2 cw_traffic2 is an hourly accumulator: one row per (dev_eui, traffic_hour, line_number), upserted by an increment RPC that never bumps created_at, so ORDER BY created_at DESC LIMIT 1 returned an arbitrary line's freshly created (near-empty) bucket — dashboard cards showed zeros. - fetchLatest/getLatest now branch for cw_traffic2: sum every count column across all of today's hour buckets and detection lines (local day in Asia/Tokyo, matching TrafficService's default); getLatest returns an aggregated pseudo-row (no id/line_number) with the latest traffic_hour - Zero rows today reports zero totals with the freshness stamp of the most recent bucket (a quiet day is legitimately 0, not "no data") - Move localMidnightToUtc/toLocalDateString/getTimezoneOffsetMs from TrafficService into TimezoneFormatterService for reuse; DashboardModule imports CommonModule Other tables keep the existing latest-row path — backward compatible. Deploy before the frontend traffic redesign (frontend-first leaves dashboard zeros until this ships). Co-Authored-By: Claude Fable 5 <[email protected]>
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Dashboard cards for AI-camera (cw_traffic2) devices showed all zeros: the table is an hourly accumulator — one row per (dev_eui, traffic_hour, line_number) upserted by an increment RPC that never bumps created_at — so
ORDER BY created_at DESC LIMIT 1returned an arbitrary line's freshly created, near-empty bucket.fetchLatest/getLatestnow branch for cw_traffic2 and return today's totals per count column, summed across all hour buckets and detection lines (local day in Asia/Tokyo, matching TrafficService)getLatestreturns an aggregated pseudo-row (noid/line_number) with the latesttraffic_hourTimezoneFormatterServicefor reuseDeploy this before the frontend traffic redesign (CropWatch PR) — frontend-first leaves the dashboard zeros in place until this ships.
🤖 Generated with Claude Code