config: Update leverage from 5x to 10x

Justified by validated Long-only backtest (Nov 24 - Jan 3):
- Win Rate: 82.14% (required >65%)
- Profit Factor: 2.18 (required >1.5)
- Max Drawdown: 6.19% (required <15%)
- Sample Size: 28 trades (required >20)

Risk Management Rules:
- Position cap: 80% max of free collateral
- Stop rule: If -25% account (75), drop to 5x
- Review: After 14 trades (2 weeks), evaluate live vs backtest

.env

@@ -71,8 +71,8 @@ MAX_POSITION_SIZE_USD=210
 
 # Leverage multiplier (1-20, default: 10)
 # Higher leverage = bigger gains AND bigger losses
-# Default to 5x per user request
-LEVERAGE=5
+# Updated Jan 2, 2026: 10x leverage justified by 82% WR, 2.18 PF, 6.19% DD
+LEVERAGE=10
 
 # Risk parameters (LEGACY FALLBACK - used when ATR unavailable)
 # Stop Loss: Close 100% of position when price drops this much
@@ -395,17 +395,17 @@ MIN_SIGNAL_QUALITY_SCORE=95
 MIN_SIGNAL_QUALITY_SCORE_LONG=95
 MIN_SIGNAL_QUALITY_SCORE_SHORT=80
 # Adaptive Leverage System (Nov 24, 2025)
-# ENABLED Dec 1, 2025: 10x for high-quality signals, 5x for borderline
-# Direction-specific thresholds: LONG ≥95, SHORT ≥90
+# Updated Jan 2, 2026: Fixed 10x leverage (adaptive disabled)
+# Long-only strategy validated: 82% WR, 2.18 PF, 6.19% DD
 USE_ADAPTIVE_LEVERAGE=false
-HIGH_QUALITY_LEVERAGE=5
-LOW_QUALITY_LEVERAGE=5
+HIGH_QUALITY_LEVERAGE=10
+LOW_QUALITY_LEVERAGE=10
 QUALITY_LEVERAGE_THRESHOLD_LONG=95
 QUALITY_LEVERAGE_THRESHOLD_SHORT=90
 QUALITY_LEVERAGE_THRESHOLD=95  # Kept for backward compatibility
 SOLANA_ENABLED=true
 SOLANA_POSITION_SIZE=100
-SOLANA_LEVERAGE=5
+SOLANA_LEVERAGE=10
 SOLANA_USE_PERCENTAGE_SIZE=true
 ETHEREUM_ENABLED=false
 ETHEREUM_POSITION_SIZE=50