fix(backend): Fix docker CTRL+C

backend/docker.sh

@@ -1,7 +1,26 @@
 #!/bin/ash
 
 # This is the Dockerfile's entrypoint script.
-
 # https://docs.docker.com/config/containers/multi-service_container/
+
+# Function to terminate processes
+cleanup() {
+    echo "Shutting down..."
+    kill $(jobs -p)
+    exit 0
+}
+
+# Set up signal handling
+trap cleanup SIGTERM SIGINT
+
+# Start chromedriver in background
 chromedriver &
-./reacher_backend
+
+# Start reacher backend in background
+./reacher_backend &
+
+# Wait for any process to exit
+wait -n
+
+# Exit with status of process that exited first
+exit $?