Pass SENTRY_DSN env var through to the backend container so the Sentry SDK
actually ships exceptions to GlitchTip — the variable was written to
.env.staging by nightly.yml but never forwarded into the container.
Enable Spring Boot 4.0 ECS structured logging (LOGGING_STRUCTURED_FORMAT_CONSOLE=ecs)
so Loki receives single-entry JSON log lines with parsed log.level, enabling
detected_level filtering in Grafana instead of 50-line unlinked stack trace blobs.
Update Grafana Loki dashboard query from | logfmt to | json to match the new format.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>