Replaced the distance↔specialty slider (heavy) with 4 compact number
inputs: Spécialité (rank_weight), Heures sup (overtime_coef — now
tunable, was hardcoded), km/h (speed), Calcul s (max_seconds). Persisted
in solverOpts (localStorage), passed to the solver. Tooltips replace the
verbose inline hints.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>