Add rebuild option to build.sh for complete no-cache builds

- rebuild: cleans everything, rebuilds base and services with --no-cache
- Updated help text to clarify full vs rebuild

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/build.sh

@@ -68,6 +68,15 @@ case "${1:-fast}" in
         echo -e "${GREEN}Cleaned!${NC}"
         ;;
 
+    rebuild)
+        echo -e "${YELLOW}Full rebuild from scratch (no cache)...${NC}"
+        $SUDO $COMPOSE_CMD -f "$COMPOSE_FILE" down --rmi local -v 2>/dev/null || true
+        $SUDO docker rmi stegasoo-base:latest 2>/dev/null || true
+        $SUDO docker build --no-cache -f "$DOCKER_DIR/Dockerfile.base" -t stegasoo-base:latest .
+        $SUDO $COMPOSE_CMD -f "$COMPOSE_FILE" build --no-cache
+        echo -e "${GREEN}Done! Start with: $COMPOSE_CMD -f docker/docker-compose.yml up -d${NC}"
+        ;;
+
     *)
         echo -e "${CYAN}Stegasoo Build Script${NC}"
         echo ""
@@ -76,12 +85,14 @@ case "${1:-fast}" in
         echo "Commands:"
         echo "  base    Build the base image (one-time, 5-10 min)"
         echo "  fast    Fast build using base image (default, ~10 sec)"
-        echo "  full   Full rebuild from scratch (slow, no base needed)"
+        echo "  full    Rebuild services without cache (uses existing base)"
+        echo "  rebuild Complete rebuild with no cache (base + services)"
         echo "  clean   Remove all images and volumes"
         echo ""
         echo "Typical workflow:"
         echo "  1. First time:   $0 base"
         echo "  2. Daily dev:    $0 fast"
         echo "  3. Deps change:  $0 base"
+        echo "  4. Nuclear:      $0 rebuild"
         ;;
 esac