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admin UI but consumed nowhere (the touch-probability model superseded it).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>

tests/property/test_recommendation_properties.py

@@ -37,7 +37,6 @@ def test_property_strength_monotonic_probability(strength_low, strength_high):
     config = {
         "recommendation_signal_alignment_weight": 0.15,
         "recommendation_sr_strength_weight": 0.20,
-        "recommendation_distance_penalty_factor": 0.10,
     }
     scores = {"technical": 65.0, "momentum": 65.0}
 
@@ -74,7 +73,6 @@ def test_property_distance_probability_relationship(near_distance, far_distance)
     config = {
         "recommendation_signal_alignment_weight": 0.15,
         "recommendation_sr_strength_weight": 0.20,
-        "recommendation_distance_penalty_factor": 0.10,
     }
     scores = {"technical": 65.0, "momentum": 65.0}