chore: Add dotenv as devDependency

Added for potential use in development scripts and testing utilities.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -49,6 +49,7 @@
     "@types/react": "latest",
     "@types/react-dom": "latest",
     "@types/three": "^0.181.0",
+    "dotenv": "^17.2.3",
     "eslint": "latest",
     "eslint-config-next": "latest",
     "jiti": "^2.6.1",

pnpm-lock.yaml

@@ -105,6 +105,9 @@ importers:
       '@types/three':
         specifier: ^0.181.0
         version: 0.181.0
+      dotenv:
+        specifier: ^17.2.3
+        version: 17.2.3
       eslint:
         specifier: latest
         version: 9.39.1(jiti@2.6.1)
@@ -1710,6 +1713,10 @@ packages:
     resolution: {integrity: sha512-uBq4egWHTcTt33a72vpSG0z3HnPuIl6NqYcTrKEg2azoEyl2hpW0zqlxysq2pK9HlDIHyHyakeYaYnSAwd8bow==}
     engines: {node: '>=12'}
 
+  dotenv@17.2.3:
+    resolution: {integrity: sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==}
+    engines: {node: '>=12'}
+
   draco3d@1.5.7:
     resolution: {integrity: sha512-m6WCKt/erDXcw+70IJXnG7M3awwQPAsZvJGX5zY7beBqpELw6RDGkYVU0W43AFxye4pDZ5i2Lbyc/NNGqwjUVQ==}
 
@@ -5034,6 +5041,8 @@ snapshots:
 
   dotenv@16.6.1: {}
 
+  dotenv@17.2.3: {}
+
   draco3d@1.5.7: {}
 
   dunder-proto@1.0.1: