Merge branch 'develop' into 87.qemu-local-grid

DEPLOYMENT-NOTES.rst

docs/ops/monitoring-architecture.drawio

docs/ops/monitoring-architecture.html

docs/ops/monitoring.rst

morph/grid/local/grid.nix

morph/grid/local/private-keys/README.rst

morph/grid/local/private-keys/grafana-zulip-url

morph/grid/production/grid.nix

morph/grid/testing/grid.nix

morph/grid/testing/public-keys/users.nix

morph/lib/borgbackup.nix

morph/lib/monitoring.nix

...monitoring/server/grafana-dashboards/meta-monitoring.json

...itoring/server/grafana-dashboards/resources-overview.json

nixos/modules/monitoring/server/grafana.nix