SNR calculator: signalFromSB calibration was 4750× too small (0.001 vs ~4.75
at SB=21). Calibration is now derived consistently from the sky background
constants: C[filter] = sky_e_s[filter] / 10^((21 - 21.5) / 2.5). Also made
it filter-aware so narrowband filters use their own reference. Replaced the
broken 500+/billions display with a proper per-filter result or a
'too faint for this setup' message when signal ≈ 0.
Score weights: 'Best score tonight' sort now accepts score_alt/fov/time/moon
query params (0.0–1.0, server-side normalised to sum=1). Frontend adds a
⚙ weights button next to the sort dropdown that reveals 4 sliders showing
effective %, persisted to localStorage. Weights default to 40/30/20/10.
Selected filter: clicking a filter pill in the Filters tab now highlights the
row (bg + amber outline on the pill + ▶ marker) so it's clear which filter
the SNR calculator and workflow card are showing.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
arnaudne
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