Cargo: codec e023bc3 (acadrust sync), kernel abca4e8, graph c63556f

The codec now holds wide EntityType variants boxed (MText, Helix,
Dimension, Hatch, Viewport, MultiLeader, Surface, Table, Ole2Frame,
Light, Extended). Constructors box their entity; nested patterns reach
a dimension through entities::dimension::as_dimension(_mut). Also
follows BlockAction::action_ids, LineTypeComplexData::source_flags and
the decimal tab stop with an explicit character.

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

tests/block_hatch_export.rs

@@ -75,7 +75,7 @@ fn block_internal_hatch_reaches_export() {
 
     // A blue hatch, wrapped into a block and inserted in model space — the
     // minimal shape of "coloured fill nested in a block".
-    let h = scene.add_entity(EntityType::Hatch(square_hatch(5)));
+    let h = scene.add_entity(EntityType::Hatch(Box::new(square_hatch(5))));
     let identity = codec::types::Transform::identity();
     scene
         .create_block_from_entities(&[h], "LOGO", &identity, &identity)
@@ -100,7 +100,7 @@ fn block_internal_hatch_reaches_export() {
 fn pattern_hatch_uses_stored_line_spacing() {
     let mut scene = Scene::new();
     // Spacing 0.5; a big pattern_scale (10) that the catalog path would apply.
-    scene.add_entity(EntityType::Hatch(ansi31_stored(0.5, 10.0)));
+    scene.add_entity(EntityType::Hatch(Box::new(ansi31_stored(0.5, 10.0))));
     scene.populate_hatches_from_document();
 
     let hatches = scene.paper_plot_hatches();
@@ -143,7 +143,7 @@ fn far_from_origin_pattern_hatch_still_fills() {
     // the perpendicular index is |k| ≈ 4000·sin45°/0.3 ≈ 9400, well past the
     // 4096 clamp on both ends; the old absolute-index clamp inverts the range
     // (k_lo > k_hi) there and emits nothing.
-    scene.add_entity(EntityType::Hatch(ansi31_stored_at(0.3, 1.0, 4000.0, 0.0)));
+    scene.add_entity(EntityType::Hatch(Box::new(ansi31_stored_at(0.3, 1.0, 4000.0, 0.0))));
     scene.populate_hatches_from_document();
 
     let hatches = scene.paper_plot_hatches();
@@ -188,7 +188,7 @@ fn textbox_boundary_path_is_not_filled() {
     let mut tb = rect_path(0.0, 0.0, 200.0, 50.0);
     tb.flags = BoundaryPathFlags::from_bits(8 | 1); // TEXTBOX + EXTERNAL
     hatch.paths.push(tb);
-    scene.add_entity(EntityType::Hatch(hatch));
+    scene.add_entity(EntityType::Hatch(Box::new(hatch)));
     scene.populate_hatches_from_document();
 
     let hatches = scene.paper_plot_hatches();