v1.1.0 — per-operation drill-down spans

Added

• Per-operation child spans for drill-down. Glide generations, form
  submissions, content changes and Stache warms now emit a span on the active
  request trace (Telemetry::tracer()->recordSpan()), carrying the identifying
  attributes — Glide preset + source path, form handle, content type/action. Each
  individual operation is now drillable and correlated to the request (or command)
  that triggered it, instead of only an aggregate counter. The counters stay for
  cheap rate/overview charts.
  • Stache warms carry their real build duration; the others are point-in-time
    markers (the events fire after the work, with no start time — a true
    end-to-end duration would need inline instrumentation of the operation).
  • Static-cache hit/miss/write outcomes are intentionally left as an attribute on
    the request root span rather than doubled into a child span per page-serve
    (which would multiply span volume on every cached request).