ATTDEF: dialog, -ATTDEF prompts, tag display, Properties and ribbon

Attribute Definition dialog and Edit Attribute Definition dialog, -ATTDEF
with the reference prompts and modes (AFLAGS), tag shown in the drawing,
justification-aware grips, reworked Properties with validation, Home Block
slide-out and Insert Block Definition panel, and the codec patch for
ATTDEF DXF output and the R2013+ solid wire cache.

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

locales/ru-RU/opencadstudio.ftl

@@ -4021,6 +4021,18 @@ insert =
     .pcs-positive = Requires a positive number.
     .pcs-positive-int = Requires a positive integer.
     .pcs-help = Traces the points on the kept side of a live section as lines.
+    .attdef-on-screen = Specify on-screen
+    .attdef-insertion-point = Insertion Point
+    .attdef-insert-field = Insert field
+    .attdef-text-settings = Text Settings
+    .attdef-align-below = Align below previous attribute definition
+    .attdef-define = Define
+    .attdef-edit-title = Edit Attribute Definition
+    .attdef-edit-help = Changes the tag, prompt and default value of an attribute definition.
+    .attdef-help = Defines an attribute: a tag, prompt and default value placed as text in a block definition.
+    .attdef-define-attributes = Define Attributes
+    .attdef-manage-attributes = Manage Attributes
+    .attdef-set-base-point = Set Base Point
 model =
     .create = Создание
     .boolean = Булевы операции