telemetry.md joins the eight pages after the OTel telemetry seam landed
on master (ctx.telemetry + telemetry/record were the one service and
event scope still without a page). All nine pages gain zh counterparts
translated whole-document per dsh-translate-docs; the eleven touched
pairs (nine new + core + the subsystems-catalog note) are recorded;
TelemetryRecord moves from TYPE_LINK_EXEMPTIONS to LINK_MAP and the
catalogs are regenerated.
