Backstop is working locally

package.json

@@ -37,6 +37,7 @@
     "hogan": "1.0.2",
     "jquery": "3.7.1",
     "morphdom": "^2.7.4",
+    "playwright": "^1.47.1",
     "python": "^0.0.4",
     "query-command-supported": "1.0.0",
     "sass-embedded": "^1.78.0",
@@ -49,6 +50,7 @@
     "@babel/core": "^7.25.2",
     "@babel/preset-env": "^7.25.4",
     "@uswds/compile": "^1.2.0",
+    "backstopjs": "^6.3.25",
     "better-npm-audit": "^3.11.0",
     "gulp": "^5.0.0",
     "gulp-add-src": "^1.0.0",