[scheduler] Document the value of the processed dates as an instant

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: flaviendelangle

packages/x-scheduler-internals/src/models/event.ts

@@ -396,8 +396,8 @@ export type SchedulerOccurrencePlaceholder =
 
 export interface SchedulerProcessedDate {
   /**
-   * The `Date` of the instant. Its getters read the timezone of the system: use `key`,
-   * `minutesInDay` or `timestamp` to read it in the timezone of the processed date.
+   * The instant of the date. Read its date and time in the timezone of the processed date through
+   * `key`, `minutesInDay` and `timestamp`.
    */
   value: TemporalSupportedObject;
   /**