Logging.md had grown to 487 lines with ~300 lines dedicated to
OpenTelemetry export — wire protocol, full metric/span catalog, env
vars, captureContent shape, sampling, the diagnostic event catalog,
and protocol notes — leaving the genuine logging overview buried
behind exporter reference material.
Move the OTEL surface to a dedicated page and slim logging.md to a
focused logs overview:
- Add docs/gateway/opentelemetry.md (OpenTelemetry export). Same
content reorganized: how it fits together, quick start, signals,
configuration reference + env vars table, privacy/captureContent,
sampling/flushing, full metric and span catalog, diagnostic event
catalog, no-exporter mode, diagnostics flags pointer, disable.
- docs/logging.md: drop the OTEL section in favor of a short
'Diagnostics and OpenTelemetry' summary that cross-links the new
page and the diagnostics-flags page. Drops 273 lines net. Also
drops the redundant body H1, retitles to 'Logging' (was 'Logging
overview' which mismatched sidebar usage), and refreshes the
Related list.
- docs/docs.json: insert gateway/opentelemetry into the
'Health and diagnostics' sidebar group, reorder pages so the user-
facing health/run pages come before exporter/internals pages, and
put logging next to opentelemetry where readers naturally
associate them.
- docs/gateway/diagnostics.md, docs/gateway/logging.md,
docs/gateway/configuration-reference.md: cross-link the new page
and sentence-case stale Title-Cased Related entries on
diagnostics.md.