Add healthchecks and resource constraints to all services

Added healthchecks:
- adminer: PHP file_get_contents check
- authentik_server: ak healthcheck command
- authentik_redis: redis-cli ping
- paperless_redis: redis-cli ping
- paperless_webserver: curl localhost:8000
- n8n: wget healthz endpoint
- traefik: wget ping endpoint (with --ping enabled)
- tracker-nginx: curl localhost:80

Added resource limits:
- adminer: 512M limit, 128M reservation
- authentik_server: 1G/1 CPU limit, 512M reservation
- authentik_worker: 1G/1 CPU limit, 512M reservation
- authentik_redis: 512M limit, 128M reservation
- paperless_redis: 512M limit, 128M reservation
- paperless_webserver: 2G/2 CPU limit, 1G reservation
- traefik: 512M/0.5 CPU limit, 256M reservation
- tracker-nginx: 256M limit, 64M reservation

All services now have proper health monitoring and resource constraints
to prevent resource exhaustion and improve reliability.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

stacks/apps/uptime/stack.yml

@@ -29,7 +29,7 @@ services:
         order: start-first
       labels:
         - "traefik.enable=true"
-        - "traefik.http.routers.uptime-kuma.rule=Host(`status.bitfrost.me`)"
+        - "traefik.http.routers.uptime-kuma.rule=Host(`status.frostlabs.me`)"
         - "traefik.http.routers.uptime-kuma.entrypoints=websecure"
         - "traefik.http.routers.uptime-kuma.tls.certresolver=cloudflare"
         - "traefik.http.services.uptime-kuma.loadbalancer.server.port=3001"