Async SSH for parallel status checks; Kuma 2 --base-path via CLI arg

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -3,8 +3,7 @@ services:
     image: louislam/uptime-kuma:2
     security_opt:
       - apparmor=unconfined
-    environment:
-      - UPTIME_KUMA_BASE_PATH=/monitor
+    command: ["node", "server/server.js", "--base-path=/monitor"]
     volumes:
       - kuma_data:/app/data
     ports: