fix(scene): hatch pattern scale and per-entity annotative check

- Hatch pattern_scale multiplied by annotation_scale in model space so
  pattern density stays consistent when CANNOSCALE changes
- Annotative check now uses AcAnnoPO xdata (R2007+ marker) instead of
  relying solely on group-code-293 flag; falls back to is_annotative
  for files with no xdata (old DXF backward compat)
- acadrust patched to local path for is_annotative field

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Cargo.lock

@@ -41,7 +41,6 @@ checksum = "366ffbaa4442f4684d91e2cd7c5ea7c4ed8add41959a31447066e279e432b618"
 [[package]]
 name = "acadrust"
 version = "0.3.4"
-source = "git+https://github.com/HakanSeven12/acadrust.git?branch=feat%2Flayout-paper-dimensions#2eaa7aacce3c5de4d6f15a0474fd365db0da9fba"
 dependencies = [
  "ahash",
  "anyhow",

Cargo.toml

@@ -23,4 +23,4 @@ rayon = "1"
 windows-sys = { version = "0.59", features = ["Win32_UI_Shell", "Win32_UI_WindowsAndMessaging"] }
 
 [patch.crates-io]
-acadrust = { git = "https://github.com/HakanSeven12/acadrust.git", branch = "feat/layout-paper-dimensions" }
+acadrust = { path = "../acadrust" }

src/scene/mod.rs

@@ -1573,7 +1573,8 @@ impl Scene {
                     match &mut m.pattern {
                         hatch_model::HatchPattern::Pattern(_) => {
                             m.angle_offset = dxf.pattern_angle as f32;
-                            m.scale = dxf.pattern_scale as f32;
+                            let anno = if self.current_layout == "Model" { self.annotation_scale } else { 1.0 };
+                            m.scale = dxf.pattern_scale as f32 * anno;
                         }
                         hatch_model::HatchPattern::Gradient { angle_deg, .. } => {
                             *angle_deg = dxf.pattern_angle.to_degrees() as f32;

src/scene/tessellate.rs

@@ -62,6 +62,25 @@ pub fn tessellate(
     };
     let name = handle.value().to_string();
 
+    // Determine effective annotation scale for this entity.
+    // AutoCAD marks annotative objects with "AcAnnoPO" xdata (R2007+).
+    // If no xdata at all: old file without annotation system → treat as annotative.
+    // If xdata present but no "AcAnnoPO": R2007+ file, entity is non-annotative → no scaling.
+    let anno_scale = {
+        let xdata = &entity.common().extended_data;
+        let is_annotative = if xdata.is_empty() {
+            // Old DXF / no annotation metadata — fall back to group-code-293 flag.
+            match entity {
+                EntityType::Text(t) => t.is_annotative,
+                EntityType::MText(m) => m.is_annotative,
+                _ => true,
+            }
+        } else {
+            xdata.get_record("AcAnnoPO").is_some()
+        };
+        if is_annotative { anno_scale } else { 1.0 }
+    };
+
     // MultiLeader/Leader need anno_scale for arrow/dogleg/text — handle before generic path.
     if let EntityType::MultiLeader(ml) = entity {
         return tessellate_multileader_single(