Add Caddy access log dashboard (Loki)
Provisions a dashboard with top country/city, top ASN, top URLs, status code and address-family breakdowns, request volume, and 4xx/5xx error rate, filterable by server. Also pins the Loki datasource uid so dashboard panels can reference it stably.
Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com Claude-Session: https://claude.ai/code/session_016w3RRcouvZHeMdzRq215KA