Add minimal tsconfig.json

Author: JamieMagee

package-lock.json

@@ -15,7 +15,8 @@
     "eslint:fix": "eslint . --fix",
     "prettier:check": "prettier . --check",
     "prettier:write": "prettier . --write",
-    "postinstall": "patch-package"
+    "postinstall": "patch-package",
+    "tsc": "tsc"
   },
   "keywords": [
     "license",
@@ -84,7 +85,9 @@
     "xml2js": "^0.5.0"
   },
   "devDependencies": {
-    "@types/node": "^22.10.1",
+    "@tsconfig/node18": "18.2.6",
+    "@tsconfig/strictest": "2.0.8",
+    "@types/node": "18.19.130",
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
     "chai-spies": "^1.0.0",
@@ -98,6 +101,6 @@
     "proxyquire": "^2.1.3",
     "request": "^2.88.2",
     "sinon": "^5.0.0",
-    "typescript": "^5.7.2"
+    "typescript": "5.9.3"
   }
 }

package.json

@@ -0,0 +1,11 @@
+{
+  "extends": ["@tsconfig/strictest/tsconfig.json", "@tsconfig/node18/tsconfig.json"],
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "noEmit": true,
+    "strictNullChecks": false,
+    "exactOptionalPropertyTypes": false
+  },
+  "include": []
+}