feat(auth,settings,tasks): add first-boot setup, real login/invites, full-page settings & admin views, multi-channel alarms, and fix null slice crashes

docker-compose.yml

@@ -15,5 +15,12 @@ services:
       - DATA_DIR=/data
       - JWT_SECRET=${JWT_SECRET:-change_this_to_a_secure_random_key_min_32_chars}
       - BASE_URL=${BASE_URL:-http://localhost:8080}
-      - ALLOW_REGISTRATION=${ALLOW_REGISTRATION:-true}
+      - ALLOW_REGISTRATION=${ALLOW_REGISTRATION:-false}
       - LOG_LEVEL=${LOG_LEVEL:-info}
+      # Optional SMTP / Mail Configuration (can also be configured in Admin UI)
+      - SMTP_HOST=${SMTP_HOST:-}
+      - SMTP_PORT=${SMTP_PORT:-587}
+      - SMTP_USER=${SMTP_USER:-}
+      - SMTP_PASS=${SMTP_PASS:-}
+      - SMTP_FROM=${SMTP_FROM:-}
+      - SMTP_TLS=${SMTP_TLS:-true}