changed stop-servers to better kill the process on updates and added test cases for feature

stop-servers.sh

@@ -1,18 +1,37 @@
 #!/bin/bash
 echo "Stopping CVE Dashboard servers..."
 
+# Kill by PID files if they exist
 if [ -f backend.pid ]; then
     kill $(cat backend.pid) 2>/dev/null
     rm backend.pid
-    echo "✓ Backend stopped"
+    echo "✓ Backend stopped (via pid)"
 fi
 
 if [ -f frontend.pid ]; then
     kill $(cat frontend.pid) 2>/dev/null
     rm frontend.pid
-    echo "✓ Frontend stopped"
+    echo "✓ Frontend stopped (via pid)"
 fi
 
-pkill -f "node server.js"
-pkill -f "react-scripts start"
-echo "All servers stopped"
+# Force kill all node processes related to this project
+pkill -9 -f "node.*server.js" 2>/dev/null
+pkill -9 -f "react-scripts" 2>/dev/null
+pkill -9 -f "webpack" 2>/dev/null
+
+# Wait a moment and verify
+sleep 1
+
+# Check if any are still running
+if pgrep -f "react-scripts" > /dev/null; then
+    echo "⚠ Some React processes still running, force killing..."
+    pkill -9 -f "react-scripts"
+    sleep 1
+fi
+
+if pgrep -f "node.*server.js" > /dev/null; then
+    echo "⚠ Backend still running, force killing..."
+    pkill -9 -f "node.*server.js"
+fi
+
+echo "✓ All servers stopped"