feat: add vuln reproduction and detection scripts

backend/script/run_all.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+# run_all.sh — Setup custom signet and run all 12 vulnerability tests
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+echo "╔══════════════════════════════════════════════════════════════╗"
+echo "║  Bitcoin Privacy Vulnerability Suite — Full Run             ║"
+echo "╚══════════════════════════════════════════════════════════════╝"
+echo ""
+
+# Step 1: Setup signet (if not already running)
+if bitcoin-cli -signet getblockchaininfo &>/dev/null; then
+    HEIGHT=$(bitcoin-cli -signet getblockcount)
+    echo "✓ Custom Signet already running at block $HEIGHT"
+    
+    # Check wallets exist
+    WALLETS=$(bitcoin-cli -signet listwallets 2>/dev/null)
+    if echo "$WALLETS" | grep -q "alice"; then
+        echo "✓ Wallets already created"
+    else
+        echo "⚠ Wallets not found. Running setup..."
+        bash setup_signet.sh
+    fi
+else
+    echo "Starting custom Signet setup..."
+    bash setup_signet.sh
+fi
+
+echo ""
+echo "Running vulnerability tests..."
+echo ""
+
+# Step 2: Run all tests
+python3 test_vulnerabilities.py "$@"