feat(blocks): implement native Array action authoring and dynamic evaluation

Add the native Array action (\BARRAY\, \BACTION ARRAY\, and Authoring Palettes Actions tab \Array\) supporting Linear, Polar, and XY parameters.

Prompt for column offset (and row offset for XY), constructing native \DynamicBlockData::ArrayAction(BlockArrayAction)\ with class \AcDbBlockArrayAction\ and 4 native connections (\Base\, \End\, \UpdatedBase\, \UpdatedEnd\) bound to the parameter node ID.

Evaluate step displacement along 1D rays and 2D grids, tagging clones with deterministic element IDs to reconcile representations cleanly across incremental grip adjustments without mutating baseline geometry. Validate native DWG/DXF roundtrip, reference independence, COPY isolation, rejections, and dock palette tool state.

src/ui/window/authoring_palettes.rs

@@ -199,6 +199,7 @@ fn catalog(
     rotate_error: Option<&'static str>,
     flip_action_error: Option<&'static str>,
     stretch_action_error: Option<&'static str>,
+    array_action_error: Option<&'static str>,
 ) -> Element<'static, Message> {
     let (entries, unavailable) = match tab {
         Tab::Parameters => (
@@ -220,8 +221,8 @@ fn catalog(
         let orientation_error = if *label=="Flip" {flip_error} else {point_error};
         let single=tab==Tab::Parameters&&matches!(*label,"Lookup"|"Basepoint");
         let lookup_action=tab==Tab::Actions&&*label=="Lookup";
-        let geometry_action=tab==Tab::Actions&&matches!(*label,"Move"|"Scale"|"Stretch"|"Rotate"|"Flip");
-        let action_error=match *label {"Scale"=>scale_error,"Stretch"=>stretch_action_error,"Rotate"=>rotate_error,"Flip"=>flip_action_error,_=>move_error};
+        let geometry_action=tab==Tab::Actions&&matches!(*label,"Move"|"Scale"|"Stretch"|"Rotate"|"Flip"|"Array");
+        let action_error=match *label {"Scale"=>scale_error,"Stretch"=>stretch_action_error,"Rotate"=>rotate_error,"Flip"=>flip_action_error,"Array"=>array_action_error,_=>move_error};
         let enabled = (geometry_action&&action_error.is_none())||(single&&point_error.is_none())||(lookup_action&&lookup_error.is_none())||(orientation && orientation_error.is_none()) || (visibility && visibility_error.is_none()) || ((point || distance) && point_error.is_none());
         let base = if enabled {
             icons::semantic(icon, 28.0)
@@ -267,7 +268,7 @@ fn catalog(
         } else if single {
             crate::t!(point_error.unwrap_or(if *label=="Basepoint" {"Place or relocate the dynamic block insertion anchor."}else{"Place a Lookup parameter, then use the Lookup action to edit its property table."})).into_owned()
         } else if geometry_action {
-            crate::t!(action_error.unwrap_or(if *label=="Stretch" {"Select a parameter endpoint, define the stretch frame, select its objects, then place the action marker."}else{"Select a parameter endpoint, select the objects it controls, then place the action marker. Use the reference parameter grip in the drawing or Test Block."})).into_owned()
+            crate::t!(action_error.unwrap_or(if *label=="Stretch" {"Select a parameter endpoint, define the stretch frame, select its objects, then place the action marker."}else if *label=="Array" {"Select a parameter endpoint, select the objects to array, specify the column offset, then place the action marker."}else{"Select a parameter endpoint, select the objects it controls, then place the action marker. Use the reference parameter grip in the drawing or Test Block."})).into_owned()
         } else if lookup_action {
             crate::t!(lookup_error.unwrap_or("Create or edit property Lookup tables for this block.")).into_owned()
         } else {
@@ -285,7 +286,7 @@ fn catalog(
         } else if single {
             container(entry).id(if *label=="Lookup" {"authoring-tool-lookup"}else{"authoring-tool-basepoint"}).into()
         } else if geometry_action {
-            container(entry).id(match *label {"Move"=>"authoring-tool-move-action","Scale"=>"authoring-tool-scale-action","Rotate"=>"authoring-tool-rotate-action","Stretch"=>"authoring-tool-stretch-action",_=>"authoring-tool-flip-action"}).into()
+            container(entry).id(match *label {"Move"=>"authoring-tool-move-action","Scale"=>"authoring-tool-scale-action","Rotate"=>"authoring-tool-rotate-action","Stretch"=>"authoring-tool-stretch-action","Array"=>"authoring-tool-array-action",_=>"authoring-tool-flip-action"}).into()
         } else if lookup_action {
             container(entry).id("authoring-tool-lookup-table").into()
         } else {
@@ -407,6 +408,7 @@ pub fn view(
     rotate_error: Option<&'static str>,
     flip_action_error: Option<&'static str>,
     stretch_action_error: Option<&'static str>,
+    array_action_error: Option<&'static str>,
 ) -> Element<'static, Message> {
     let tabs = column(Tab::ALL.into_iter().map(|category| {
         let label = category.label();
@@ -466,7 +468,8 @@ pub fn view(
                 scale_error,
                 rotate_error,
                 flip_action_error,
-                stretch_action_error
+                stretch_action_error,
+                array_action_error,
             ))
             .width(Fill)
             .height(Fill),