feat(clipboard): PASTESPEC pastes in a chosen format

PASTESPEC offers the formats on the clipboard: Objects and Block for
objects copied in the application (the PASTECLIP and PASTEBLOCK paths),
and Text for the system clipboard's text, placed as multi-line text in
the current text style with its lines as paragraphs.

Refs #645

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

locales/ru-RU/opencadstudio.ftl

@@ -3608,6 +3608,8 @@ annotate =
     .tolerance-specify-insertion-point = TOLERANCE Укажите точку вставки:
 
 insert =
+    .pastespec-specify-insertion-point = PASTESPEC  Укажите точку вставки:
+    .pastespec-paste-as = PASTESPEC  Вставить как [Objects/Block/Text]:
     .pdfui-pdf-scale = PDF scale: __ocs_fmt_0__:1
     .pdfui-specify-insertion-point = Specify insertion point:
     .pdfui-no-pdf-underlays = No PDF underlays found.