feat: add Scrub & Sanitize phase to setup script for reliable restarts

scripts/setup.sh

@@ -29,6 +29,27 @@ REAL_USER=${SUDO_USER:-$(logname)}
 REAL_HOME=$(eval echo "~$REAL_USER")
 echo "Target User: $REAL_USER ($REAL_HOME)"
 
+# 0.5 SCRUB & SANITIZE PHASE
+echo "Scrubbing system for a clean installation..."
+systemctl stop mpvj-backend.service 2>/dev/null || true
+pkill -9 ofxPiMapper 2>/dev/null || true
+pkill -9 node 2>/dev/null || true
+
+# Remove old setup artifacts
+swapoff /swapfile_mpvj 2>/dev/null || true
+rm -f /swapfile_mpvj 2>/dev/null || true
+
+# Clear any stale apt locks
+rm -f /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock /var/cache/apt/archives/lock 2>/dev/null || true
+
+# Ask to wipe previous data for a fresh start
+if [ -d "$REAL_HOME/mpvj" ] || [ -d "$REAL_HOME/openFrameworks" ]; then
+  if whiptail --title "Cleanup" --yesno "Found existing MPVJ or OpenFrameworks data. Wipe them for a clean install?" 10 60 < /dev/tty; then
+    echo "Wiping old directories..."
+    rm -rf "$REAL_HOME/mpvj" "$REAL_HOME/openFrameworks"
+  fi
+fi
+
 # 1. INTERROGATION PHASE
 echo "Interrogating user for configuration..."