Add a script for linking Foundry into the project root

package-lock.json

@@ -8,6 +8,7 @@
         "@eslint/js": "^9.16.0",
         "@foundryvtt/foundryvtt-cli": "^1.0.3",
         "@stylistic/eslint-plugin": "^2.12.0",
+        "dotenv": "^17.2.3",
         "eslint": "^9.16.0"
       }
     },
@@ -775,6 +776,19 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/dotenv": {
+      "version": "17.2.3",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.2.3.tgz",
+      "integrity": "sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
     "node_modules/dunder-proto": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.0.tgz",