fix(nginx): 优先 127.0.0.11 与延长 DNS valid，缓解 api/web 间歇无法解析致 502

Made-with: Cursor

scripts/nginx-entrypoint-wait-dns.sh

@@ -104,6 +104,12 @@ else
   echo "yh_nginx: resolver from resolv.conf: ${NSLINE}" >&2
 fi
 
+# Docker compose 服务名由网桥内置 DNS（通常 127.0.0.11）解析；仅用宿主机 DNS 会间歇「could not be resolved」→502
+case "$NSLINE" in
+  *127.0.0.11*) ;;
+  *) NSLINE="127.0.0.11 ${NSLINE}"; echo "yh_nginx: prepended 127.0.0.11 for compose DNS: ${NSLINE}" >&2 ;;
+esac
+
 if [ ! -r /yuheng.docker.conf.tpl ]; then
   echo "yh_nginx: error: /yuheng.docker.conf.tpl not mounted" >&2
   exit 1