fix

.env.example

@@ -4,6 +4,11 @@ DOCKER_REGISTRY=docker.io
 DOCKER_IMAGE=myorg/myapp
 IMAGE_TAG=latest
 
+# Required for authentication
+SECRET_KEY=<random-32-byte-hex>
+ADMIN_USER=admin
+ADMIN_PASSWORD=<strong-password>
+
 # Optional: check retention (limits DB growth)
 # CHECK_RETENTION_COUNT=5000   # keep last N checks per service (default 5000)
 # CHECK_RETENTION_DAYS=30      # also delete checks older than N days (0=disabled)