fix: Improve Docker command handling and error messages in start_docker_build.sh

Website/start_docker_build.sh

@@ -9,7 +9,26 @@ if ! command -v docker >/dev/null 2>&1; then
   exit 1
 fi
 
-if ! docker compose version >/dev/null 2>&1; then
+DOCKER_CMD=(docker)
+
+if ! docker info >/dev/null 2>&1; then
+  if command -v sudo >/dev/null 2>&1 && sudo -n docker info >/dev/null 2>&1; then
+    DOCKER_CMD=(sudo docker)
+    echo "==> Docker daemon requires elevated permissions; using sudo docker"
+  else
+    echo "Error: cannot access Docker daemon (/var/run/docker.sock)."
+    echo ""
+    echo "Fix options:"
+    echo "  1) Run once with sudo: sudo ./start_docker_build.sh"
+    echo "  2) Permanent fix (recommended):"
+    echo "     sudo usermod -aG docker $USER"
+    echo "     newgrp docker"
+    echo "     # or logout/login"
+    exit 1
+  fi
+fi
+
+if ! "${DOCKER_CMD[@]}" compose version >/dev/null 2>&1; then
   echo "Error: docker compose plugin is not available."
   exit 1
 fi
@@ -22,13 +41,13 @@ echo "    NUITKA_JOBS=${NUITKA_JOBS}"
 echo "    NUITKA_LOW_MEMORY=${NUITKA_LOW_MEMORY}"
 
 echo "==> Building website image (Nuitka standalone conversion runs in Dockerfile)"
-NUITKA_JOBS="$NUITKA_JOBS" NUITKA_LOW_MEMORY="$NUITKA_LOW_MEMORY" docker compose build website
+NUITKA_JOBS="$NUITKA_JOBS" NUITKA_LOW_MEMORY="$NUITKA_LOW_MEMORY" "${DOCKER_CMD[@]}" compose build website
 
 echo "==> Starting internal MongoDB + Website containers"
-docker compose up -d
+"${DOCKER_CMD[@]}" compose up -d
 
 echo "==> Container status"
-docker compose ps
+"${DOCKER_CMD[@]}" compose ps
 
 echo "Application is starting on: http://localhost:4999"
 echo "Use: docker compose logs -f website"