Add restart policy to autostart the containers after boot

compose.yaml

@@ -1,5 +1,9 @@
+x-op-restart-policy: &restart_policy
+  restart: unless-stopped
+
 services:
   shimatta-kenkyusho-web:
+    <<: *restart_policy
     build: .
     volumes:
       - "${DJANGO_STATIC_VOL:-./run/static}:/var/static"
@@ -30,6 +34,7 @@ services:
       start_period: 30s
 
   shimatta-kenkyusho-db:
+    <<: *restart_policy
     image: postgres:16.5-alpine
     environment:
       POSTGRES_PASSWORD: "${DJANGO_POSTGRESQL_PW:-p4ssw0rd}"