test(sharing): say which v1.44 routes joined the record list

The note named the activity goals among the three new readable routes.
They are the calendar read and the two source provenance reads; the
goals route stays owner-only.

src/__tests__/sharing-surface-guard.test.ts

@@ -2191,8 +2191,11 @@ const ACTOR_ROUTES: Record<string, string> = {
  * v1.44 -- the module list layout and the preview-feature switch are the
  * person's own presentation and join the actor list. 268 -> 270.
  *
- * v1.44 -- the activity calendar read, the activity goals and the source
- * provenance reads join the list. 270 -> 273.
+ * v1.44 -- three readable routes join the record list: the activity calendar
+ * read and the two source provenance reads (one day, and two sources side by
+ * side). The activity goals route does not: setting or changing goals stays
+ * owner-only, and a delegate sees the goals only as the calendar reports them.
+ * 270 -> 273.
  */
 const FROZEN_ENTRY_COUNT = 273;