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BigBodyCobain
03b8053617
Pre-fix the emissions tooltip only showed the per-hour *rate* — what most users actually want is the cumulative *amount* burned. This adds running totals computed by multiplying the model-based rate by the elapsed observation time since we first saw the airframe. New module ``flight_observations.py``: * Tracks first_seen_at + last_seen_at per icao24 hex. * Re-opens a fresh session when an aircraft is unseen for > 15 min (treated as a new flight — landed and took off, or transited a dead zone). Prevents the cumulative counter from resetting mid-flight if the trail-rendering cache prunes the trail. * Clamps elapsed time to 24h max so clock skew can't produce comically large numbers. * Pruned every 5 min via a new scheduler job (mirrors ais_prune cadence). flights.py + military.py emission enrichment now also attaches: * observed_seconds — how long we've been tracking this airframe. * fuel_gallons_burned — rate * elapsed_h. * co2_kg_emitted — rate * elapsed_h. The existing per-hour rate fields stay in the dict for backward compat and are shown as small secondary context in the tooltip. Frontend EmissionsEstimateBlock (NewsFeed.tsx) now prominently shows the cumulative totals with the rate as smaller context underneath plus "Observed in flight for Xh Ym". When observed_seconds is 0 (first refresh) it renders "Just observed · totals will appear on next refresh" instead of a misleading "0 gal". 12 backend tests cover record/accumulate/reset, the 24h clamp, prune, case-insensitive key normalization, and end-to-end emission integration in _classify_and_publish. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>