Add LDAP and OIDC authentication, along with configurable user registration and admin user creation.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 9111ef36-26c8-4085-84ca-a35dc1fec1b5
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/7083d608-d6d3-4a6a-9a27-6286c5109627/96fcf2d8-8471-4e81-8211-91059abd5e7f.jpg

package.json

@@ -48,6 +48,7 @@
     "cmdk": "^1.0.0",
     "connect-pg-simple": "^10.0.0",
     "date-fns": "^3.6.0",
+    "dotenv": "^16.4.7",
     "drizzle-orm": "^0.39.1",
     "drizzle-zod": "^0.7.0",
     "embla-carousel-react": "^8.3.0",
@@ -59,7 +60,9 @@
     "memorystore": "^1.6.7",
     "node-fetch": "^3.3.2",
     "passport": "^0.7.0",
+    "passport-ldapauth": "^3.0.1",
     "passport-local": "^1.0.0",
+    "passport-openidconnect": "^0.1.2",
     "react": "^18.3.1",
     "react-day-picker": "^8.10.1",
     "react-dom": "^18.3.1",