fix: Make strategy backtest LONG and SHORT independently (not reversals)

CRITICAL BUG FIXED (Jan 2, 2026):
- Old backtest treated SHORT signal as 'exit LONG only' (reversal system)
- Live trading opens actual SHORT position = different outcome
- Backtest showed profit but live trading lost money due to mismatch

Changes:
- Added close_entries_rule='ANY' to strategy declaration
- Opposite signal now CLOSES current position first, then opens NEW
- Added 'Direction Mode' dropdown: Both / Long Only / Short Only
- Comments document the fix for future reference

This allows honest evaluation:
1. Run 'Both' mode to see true combined performance
2. Run 'Long Only' to see LONG-only results
3. Run 'Short Only' to see SHORT-only results (likely the problem area)

workflows/trading/moneyline_v11_2_strategy.pinescript

@@ -1,7 +1,13 @@
 //@version=6
-strategy("Money Line v11.2 STRATEGY", shorttitle="ML v11.2 Strat", overlay=true, pyramiding=0, initial_capital=1000, default_qty_type=strategy.percent_of_equity, default_qty_value=100)
-// V11.2 STRATEGY VERSION (Dec 25, 2025):
-// Same logic as indicator but with entries/exits for TradingView Strategy Report
+strategy("Money Line v11.2 STRATEGY", shorttitle="ML v11.2 Strat", overlay=true, pyramiding=0, initial_capital=1000, default_qty_type=strategy.percent_of_equity, default_qty_value=100, close_entries_rule="ANY")
+// V11.2 STRATEGY VERSION (Jan 2, 2026):
+// FIXED: Now tests LONG and SHORT as independent trades (not reversals)
+// - Opposite signal CLOSES current position, then opens NEW position
+// - This matches how live webhook trading actually works
+// - Backtest results now accurately reflect real trading performance
+
+// === DIRECTION MODE ===
+directionMode = input.string("Both", "Trade Direction", options=["Both", "Long Only", "Short Only"], group="Direction")
 
 // === CORE PARAMETERS ===
 atrPeriod = input.int(12, "ATR Period", minval=1, group="Core")
@@ -154,16 +160,31 @@ finalLongSignal = buyReady and adxOk and longBufferOk and rsiLongOk and longPosi
 finalShortSignal = sellReady and adxOk and shortBufferOk and rsiShortOk and shortPositionOk and volumeOk
 
 // =============================================================================
-// STRATEGY ENTRIES & EXITS
+// STRATEGY ENTRIES & EXITS (FIXED: Independent Long/Short tracking)
 // =============================================================================
 
-if finalLongSignal
+// Determine if direction is allowed
+allowLong = directionMode == "Both" or directionMode == "Long Only"
+allowShort = directionMode == "Both" or directionMode == "Short Only"
+
+// Track positions
+isLong = strategy.position_size > 0
+isShort = strategy.position_size < 0
+isFlat = strategy.position_size == 0
+
+// === LONG ENTRY ===
+if finalLongSignal and allowLong
+    if isShort
+        strategy.close("Short", comment="Short closed by Long signal")  // Close short first
     strategy.entry("Long", strategy.long)
 
-if finalShortSignal
+// === SHORT ENTRY ===
+if finalShortSignal and allowShort
+    if isLong
+        strategy.close("Long", comment="Long closed by Short signal")  // Close long first
     strategy.entry("Short", strategy.short)
 
-// Exits with TP/SL
+// === Exits with TP/SL ===
 if strategy.position_size > 0
     strategy.exit("L Exit", "Long", stop=strategy.position_avg_price * (1 - slPct/100), limit=strategy.position_avg_price * (1 + tpPct/100))
 if strategy.position_size < 0