setup admin connection

sop-back/.env.example

@@ -2,8 +2,10 @@
 PROJECT_NAME=Smash or Pass
 ALLOWED_ORIGINS=["http://localhost:5173","http://localhost:8080"]
 
-# Admin gate
-ADMIN_ENABLED=true
+# Admin account — set both to enable admin login at /login.
+# Leave empty to fully disable admin endpoints.
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=change-me
 
 # Database (SQLite file path)
 DATABASE_URL=sqlite:///./data/sop.db