Frames: state-following ribbon list, DWF/DGN frames, image frame encoding and profile, frame-only picking

- The Frames list shows the drawing's frame state (hide / display and plot /
  display but not plot / frames vary), follows commands, undo and document
  switches, and lists the mixed state as a disabled item.
- DWFFRAME and DGNFRAME are frame variables of their own, kept in the header,
  and FRAME sets them with the others.
- Out-of-range frame values say "Requires an integer between 0 and 2." and
  ask again; a set value reports "Regenerating model.".
- IMAGEFRAME is stored in the image variables as bits (2 is written as 3) and
  a drawing without them uses the profile value, which setting IMAGEFRAME
  updates and the settings file keeps.
- Raster images, PDF underlays and wipeouts are picked on their frame only;
  underlay snap geometry is never picked.

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

locales/ru-RU/opencadstudio.ftl

@@ -3656,6 +3656,12 @@ insert =
     .frames-print = Frames & Print (недоступная ссылка)
     .frames-off = Снятие рам
     .frames-on = В кадрах
+    .hide-frames = Hide frames
+    .display-and-plot-frames = Display and plot frames
+    .display-not-plot-frames = Display but don't plot frames
+    .frames-vary = *Frames vary*
+    .regenerating-model = Regenerating model.
+    .requires-int-0-2 = Requires an integer between 0 and 2.
     .insert-prompt-hint = INSERT  __ocs_arg_prompt____ocs_arg_hint__:
     .insert-enter-block-name-hint = INSERT Введите имя блока: __ocs_arg_hint__
     .insert-filling-attributes = INSERT Наполнение атрибутов...