Throttle platform SSO session checks to cut per-request auth latency.

Verify auth.ladill.com at most once every 90s; recommend Redis for session/cache in .env.example.

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

@@ -27,7 +27,12 @@ DB_DATABASE=ladill_hosting
 DB_USERNAME=ladill_hosting
 DB_PASSWORD=
 
-SESSION_DRIVER=database
+REDIS_CLIENT=phpredis
+REDIS_HOST=127.0.0.1
+REDIS_PASSWORD=null
+REDIS_PORT=6379
+
+SESSION_DRIVER=redis
 # Idle web session length in minutes (1440 = 24 hours of inactivity).
 SESSION_LIFETIME=1440
 SESSION_ENCRYPT=false
@@ -37,7 +42,7 @@ SESSION_DOMAIN=.ladill.com
 BROADCAST_CONNECTION=log
 FILESYSTEM_DISK=local
 QUEUE_CONNECTION=database
-CACHE_STORE=database
+CACHE_STORE=redis
 
 LADILL_SSO_CLIENT_ID=
 LADILL_SSO_CLIENT_SECRET=