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>

src/modules/draw/mod.rs

@@ -31,7 +31,7 @@ impl CadModule for DrawModule {
         use crate::modules::annotate::{
             angular_dim, leader_cmd, linear_dim, mleader_cmd, mtext, radius_dim, text,
         };
-        use crate::modules::insert::{create_block, insert_block};
+        use crate::modules::insert::{attedit, create_block, edit_block, insert_block};
         use clipboard::{copy_clip, cut, paste};
         use draw::{arc, circle, ellipse, hatch, line, polyline, shapes};
         use groups::{group, ungroup};
@@ -200,9 +200,13 @@ impl CadModule for DrawModule {
                 },
                 RibbonGroup {
                     title: "Block",
+                    // Slide-out: Define / Manage / Synchronize Attributes and
+                    // Set Base Point.
                     tools: vec![
-                        RibbonItem::LargeTool(create_block::tool()),
                         RibbonItem::LargeTool(insert_block::tool()),
+                        RibbonItem::Tool(create_block::tool()),
+                        RibbonItem::Tool(edit_block::tool()),
+                        RibbonItem::Tool(attedit::tool()),
                     ],
                 },
                 RibbonGroup {

src/modules/insert/attsync.rs

@@ -1,10 +0,0 @@
-use crate::modules::{IconKind, ModuleEvent, ToolDef};
-pub const ICON: IconKind = IconKind::Svg(include_bytes!("../../../assets/icons/attsync.svg"));
-pub fn tool() -> ToolDef {
-    ToolDef {
-        id: "ATTSYNC",
-        label: "Synchronize",
-        icon: ICON,
-        event: ModuleEvent::Command("ATTSYNC".to_string()),
-    }
-}

src/modules/insert/base_point.rs

@@ -1,19 +1,8 @@
 use crate::t;
 
 use crate::command::{CadCommand, CmdResult};
-use crate::modules::{IconKind, ModuleEvent, ToolDef};
 use glam::DVec3;
 
-pub const ICON: IconKind = IconKind::Svg(include_bytes!("../../../assets/icons/base_point.svg"));
-pub fn tool() -> ToolDef {
-    ToolDef {
-        id: "BASE",
-        label: "Set Base\nPoint",
-        icon: ICON,
-        event: ModuleEvent::Command("BASE".to_string()),
-    }
-}
-
 // ── Command implementation ────────────────────────────────────────────────
 
 /// Picks one point and delegates to the inline `BASE <x> <y> <z>` handler,

src/modules/insert/mod.rs

@@ -1,14 +1,13 @@
 // Insert module — references, point clouds, blocks, attributes, import, content.
 
 mod attdef;
-mod attedit;
+pub(crate) mod attedit;
 mod attman;
-mod attsync;
 pub mod base_point;
 mod content_browser;
 pub(crate) mod create_block;
 mod design_center;
-mod edit_block;
+pub(crate) mod edit_block;
 pub(crate) mod image_transparency;
 pub(crate) mod insert_block;
 mod landxml;
@@ -106,19 +105,17 @@ impl CadModule for InsertModule {
                     tools: vec![
                         RibbonItem::LargeTool(mview_block::tool()),
                         RibbonItem::LargeTool(insert_block::tool()),
-                        RibbonItem::Tool(create_block::tool()),
-                        RibbonItem::Tool(edit_block::tool()),
-                        RibbonItem::Tool(base_point::tool()),
+                        RibbonItem::LargeTool(attedit::tool()),
                     ],
                 },
-                // ── Attributes ────────────────────────────────────────────────────
+                // ── Block Definition (slide-out: Set Base Point, Synchronize) ─────
                 RibbonGroup {
-                    title: "Attributes",
+                    title: "Block Definition",
                     tools: vec![
+                        RibbonItem::LargeTool(create_block::tool()),
                         RibbonItem::LargeTool(attdef::tool()),
-                        RibbonItem::LargeTool(attedit::tool()),
-                        RibbonItem::Tool(attman::tool()),
-                        RibbonItem::Tool(attsync::tool()),
+                        RibbonItem::LargeTool(attman::tool()),
+                        RibbonItem::LargeTool(edit_block::tool()),
                     ],
                 },
                 // ── Import ────────────────────────────────────────────────────────