fix(schedules): actually persist the professional's opening hours

Saving opening hours from the app never did anything. The payload went to
PATCH /professionals/me as a map keyed by day name ({"monday": {"habilitado":
true, "range1Hour1": "8:0"}}), and that endpoint silently drops a `schedules`
key — it answers 200 with the record unchanged. So the professional edited
their hours, got "Información actualizada correctamente", and the agenda kept
whatever it had.

The real endpoint is PATCH /professionals/me/schedules and it takes an array
of {day_of_week, enabled, continuous_day, range*_hour*} with zero-padded
times, which is what the web has been sending all along.

Verified against the backend: the previous payload returns 200 and changes
nothing; the new one returns 200 and the rows come back updated.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/professional_repository/lib/src/entities/schedules.dart

@@ -63,6 +63,24 @@ class Schedules extends Equatable {
     );
   }
 
+  /// The array PATCH /professionals/me/schedules expects, ordered
+  /// 0 = Monday … 6 = Sunday.
+  ///
+  /// The map form below is NOT accepted by the backend: sending it to
+  /// /professionals/me returns 200 and silently discards the schedules, which
+  /// is why editing opening hours appeared to work and never persisted.
+  List<Map<String, dynamic>> toSchedulesArray() {
+    return [
+      monday.toScheduleDto(0),
+      tuesday.toScheduleDto(1),
+      wednesday.toScheduleDto(2),
+      thursday.toScheduleDto(3),
+      friday.toScheduleDto(4),
+      saturday.toScheduleDto(5),
+      sunday.toScheduleDto(6),
+    ];
+  }
+
   Map<String, dynamic> toJson() {
     return {
       'monday': monday.toJson(),