Caddy dashboard: show 0/0% instead of "No data", enable Gravatar explicitly
- Requests/5xx%/4xx%/401% stat panels now show 0 / 0% when the underlying Loki query returns an empty result (e.g. no requests, or no matching status in the window) instead of "No data"
- Grafana already defaults GF_SECURITY_DISABLE_GRAVATAR to false, but set it explicitly in docker-compose.yml so it's not implicit. If avatars still don't show up after this, it's likely the kmon host blocking egress to secure.gravatar.com, not a Grafana setting.
Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com Claude-Session: https://claude.ai/code/session_01EV6SQsz6pc6saCHMjNtFN9