Fix production environment variables

- Remove old Confluence variables
- Add NEXT_PUBLIC_API_URL for API access

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

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

lambda/auth/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "auth-api",
+  "version": "1.0.0",
+  "description": "Lambda function for authentication",
+  "main": "index.js",
+  "dependencies": {
+    "bcryptjs": "^2.4.3",
+    "jsonwebtoken": "^9.0.2"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs"
+}