feat: implement auth system, passkeys, and user management

Add PostgreSQL and Redis integration for users and sessions
Implement password and WebAuthn passkey login flows
Add Docker stack, super-admin seeding, and protected routes

.dockerignore

@@ -0,0 +1,15 @@
+.git
+.gitignore
+.nuxt
+.output
+node_modules
+.env
+.env.*
+!.env.example
+README.md
+Dockerfile*
+docker-compose*.yml
+npm-debug.log*
+pnpm-debug.log*
+yarn-debug.log*
+yarn-error.log*