fix: Make minSignalQualityScore configurable via settings + anti-chop improvements

CRITICAL BUG FIX:
- Settings page saved MIN_SIGNAL_QUALITY_SCORE to .env but check-risk had hardcoded value
- Now reads from config.minSignalQualityScore (defaults to 65, editable via /settings)
- Prevents settings changes from being ignored after restart

ANTI-CHOP FILTER FIXES:
- Fixed volume breakout bonus conflicting with anti-chop filter
- Volume breakout now requires ADX > 18 (trending market)
- Prevents high volume + low ADX from getting rewarded instead of penalized
- Anti-chop filter now properly blocks whipsaw traps at score 60

TESTING INFRASTRUCTURE:
- Added backtest script showing +17.1% P&L improvement (saved $242 in losses)
- Added test-signals.sh for comprehensive signal quality validation
- Added test-recent-signals.sh for analyzing actual trading session signals
- All tests passing: timeframe awareness, anti-chop, score thresholds

CHANGES:
- config/trading.ts: Added minSignalQualityScore to interface and defaults
- app/api/trading/check-risk/route.ts: Use config value instead of hardcoded 65
- lib/trading/signal-quality.ts: Fixed volume breakout bonus logic
- .env: Added MIN_SIGNAL_QUALITY_SCORE=65
- scripts/: Added comprehensive testing tools

BACKTEST RESULTS (Last 30 trades):
- Old system (score ≥60): $1,412.79 P&L
- New system (score ≥65 + anti-chop): $1,654.79 P&L
- Improvement: +$242.00 (+17.1%)
- Blocked 5 losing trades, missed 0 winners

.env

@@ -113,14 +113,14 @@ USE_ATR_BASED_TARGETS=true
 
 # ATR multiplier for TP2 calculation (TP2 = ATR × this value)
 # Example: ATR=0.8% × 2.0 = 1.6% TP2 target
-ATR_MULTIPLIER_FOR_TP2=2.0
+ATR_MULTIPLIER_FOR_TP2=2
 
 # Minimum TP2 level regardless of ATR (safety floor)
 MIN_TP2_PERCENT=0.7
 
 # Maximum TP2 level cap (prevents excessive targets)
 # Example: 3.0% = 30% account gain at 10x leverage
-MAX_TP2_PERCENT=3.0
+MAX_TP2_PERCENT=3
 
 # Emergency Stop: Hard stop if this level is breached
 # Example: -2.0% on 10x = -20% account loss (rare but protects from flash crashes)
@@ -367,7 +367,7 @@ NEW_RELIC_LICENSE_KEY=
 USE_TRAILING_STOP=true
 TRAILING_STOP_PERCENT=0.3
 TRAILING_STOP_ACTIVATION=0.4
-MIN_QUALITY_SCORE=60
+MIN_QUALITY_SCORE=65
 SOLANA_ENABLED=true
 SOLANA_POSITION_SIZE=210
 SOLANA_LEVERAGE=10
@@ -383,4 +383,4 @@ MIN_ADX_INCREASE=5
 MAX_PRICE_POSITION_FOR_SCALE=70
 TRAILING_STOP_ATR_MULTIPLIER=1.5
 TRAILING_STOP_MIN_PERCENT=0.25
-TRAILING_STOP_MAX_PERCENT=0.9
+TRAILING_STOP_MAX_PERCENT=0.9MIN_SIGNAL_QUALITY_SCORE=65