add track-record reset; drop dead distance_penalty_factor knob

Track Record: new "Reset" action (POST /admin/track-record/reset) deletes all
trade setups so stats start fresh after material scoring/setup changes — live
setups regenerate on the next scan. Guarded by a confirm dialog.

Recommendation config: remove distance_penalty_factor, which was exposed in the
admin UI but consumed nowhere (the touch-probability model superseded it). A
knob that silently does nothing is worse than no knob. Remaining defaults are
left as-is — they're reasonable, and the honest way to tune them is backtesting
against accumulated outcomes, not invented "researched" numbers.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/services/recommendation_service.py

@@ -22,7 +22,6 @@ DEFAULT_RECOMMENDATION_CONFIG: dict[str, float] = {
     "recommendation_confidence_diff_threshold": 20.0,
     "recommendation_signal_alignment_weight": 0.15,
     "recommendation_sr_strength_weight": 0.20,
-    "recommendation_distance_penalty_factor": 0.10,
     "recommendation_momentum_technical_divergence_threshold": 30.0,
     "recommendation_fundamental_technical_divergence_threshold": 40.0,
 }