- Caddy Response Status Codes: caddy_http_responses_total doesn't exist,
use caddy_http_response_duration_seconds_count which has the code label
- pg_stat_statements: enable extension in init script, add custom queries
config for postgres-exporter, remove invalid datname filter from query
- Add postgres/queries.yml to cd-infra SCP sources
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
