build(npm): set up lint-staged

package.json

@@ -87,6 +87,8 @@
     "eslint-plugin-import": "2.18.0",
     "eslint-plugin-mocha": "5.3.0",
     "eslint-plugin-security": "1.4.0",
+    "husky": "2.7.0",
+    "lint-staged": "8.2.1",
     "mocha": "6.1.4",
     "npm-run-all": "4.1.5",
     "nyc": "14.1.1",
@@ -146,5 +148,17 @@
   },
   "bugs": {
     "url": "https://github.com/sverweij/state-machine-cat/issues"
+  },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "lint-staged": {
+    "{src,test}/**/*.js": [
+      "eslint --fix",
+      "depcruise --output-type err-long --validate config/dependency-cruiser.js",
+      "git add"
+    ]
   }
 }