feat(kit): create configured sandbox image

build-sbx.sh

@@ -154,6 +154,16 @@ main() {
             workspace_paths+=("$workspace_path")
         done
     fi
+
+    printf 'Creating Docker sbx image: %s\n' "$new_sandbox_name"
+    if ! sbx create opencode \
+        --name "$new_sandbox_name" \
+        --kit "$KIT_PATH" \
+        --template "$TEMPLATE" \
+        "${workspace_paths[@]}"; then
+        printf 'Unable to create Docker sbx image: %s\n' "$new_sandbox_name" >&2
+        exit 1
+    fi
 }
 
 main "$@"