feat: implement custom login system with direct authentication

- Add custom login page with username/password form and SSO fallback
- Implement direct login API endpoint with security features
- Add forgot password functionality and email notifications
- Create guest middleware for authentication routing
- Update Keycloak configuration and add cookie domain settings
- Add security utilities for rate limiting and validation
- Include comprehensive documentation for custom login implementation

.env.example

@@ -5,10 +5,13 @@ NUXT_PORT=6060
 NUXT_HOST=0.0.0.0
 
 # Keycloak Configuration
-NUXT_KEYCLOAK_ISSUER=https://auth.monacousa.org/realms/monacousa-portal
+NUXT_KEYCLOAK_ISSUER=https://auth.monacousa.org/realms/monacousa
 NUXT_KEYCLOAK_CLIENT_ID=monacousa-portal
 NUXT_KEYCLOAK_CLIENT_SECRET=your-keycloak-client-secret
-NUXT_KEYCLOAK_CALLBACK_URL=https://monacousa.org/auth/callback
+NUXT_KEYCLOAK_CALLBACK_URL=https://portal.monacousa.org/auth/callback
+
+# Cookie Configuration
+COOKIE_DOMAIN=.monacousa.org
 
 # NocoDB Configuration
 NUXT_NOCODB_URL=https://db.monacousa.org
@@ -29,4 +32,4 @@ NUXT_ENCRYPTION_KEY=your-32-character-encryption-key-here
 
 # Public Configuration
 NUXT_PUBLIC_DOMAIN=monacousa.org
-#
+#