feat: apply #28B smart breakeven + #31B H1 EMA20 filter, add backtests #26-#32

Live trading optimizations (cumulative: $2,807 net, 81.8% WR, Sharpe 3.97):
- #28B: Smart breakeven locks profit at entry + 0.5x ATR instead of fixed $2
- #31B: H1 Price vs EMA20 filter — BUY only when H1 bullish, SELL only when bearish

Backtests #26-#32 (7 scripts testing sell improvement, regime-aware entry,
confluence scoring, dynamic RR, multi-TF H1, and ML exit optimizer).
Winners: #28B (+$229), #31B (+$343). Failed: #26, #27, #29, #30, #32.

Also includes: web dashboard redesign, Docker setup, startup scripts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-stop.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# XAUBot AI - Docker Stop Script
+
+set -e
+
+echo "🛑 Stopping XAUBot AI Docker Services..."
+echo ""
+
+# Parse arguments
+if [ "$1" == "--remove" ] || [ "$1" == "-r" ]; then
+    echo "⚠️  Stopping and removing containers..."
+    docker-compose down
+    echo "✅ Containers stopped and removed"
+elif [ "$1" == "--clean" ] || [ "$1" == "-c" ]; then
+    echo "⚠️  WARNING: This will remove all data including database!"
+    read -p "Are you sure? (yes/no): " confirm
+    if [ "$confirm" == "yes" ]; then
+        docker-compose down -v
+        echo "✅ Containers, networks, and volumes removed"
+    else
+        echo "❌ Cancelled"
+    fi
+else
+    echo "🔄 Stopping containers (data will be preserved)..."
+    docker-compose stop
+    echo "✅ Containers stopped"
+fi
+
+echo ""
+echo "📋 To restart: ./docker-start.sh"
+echo ""