perf: AABB snap pre-rejection via acadrust bounding_box() (Option K upgrade)

Add `aabb: [f32; 4]` field to WireModel (world-space 2-D bounding box).
In tessellate_entity() set each wire's AABB from e.as_entity().bounding_box()
via new entity_aabb() helper; Insert sub-entities each get their own AABB.
Preview/interim wires and any entity returning a zero-extent default box get
UNBOUNDED_AABB so they are never pre-rejected.

Replace the chord-sphere heuristic in Snapper::wire_in_range() with a proper
AABB vs snap-circle overlap test.  The new check is four scalar comparisons and
correctly handles closed curves (circles, arcs) which the chord-sphere approach
had to special-case.

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

src/modules/annotate/aligned_dim.rs

@@ -101,6 +101,7 @@ impl CadCommand for AlignedDimensionCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }
@@ -134,5 +135,6 @@ fn preview_aligned(p1: Vec3, p2: Vec3, dim_pt: Vec3) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }

src/modules/annotate/angular_dim.rs

@@ -124,6 +124,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }
 

src/modules/annotate/diameter_dim.rs

@@ -100,5 +100,6 @@ fn preview_line(a: Vec3, b: Vec3) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }

src/modules/annotate/dim_baseline.rs

@@ -142,6 +142,7 @@ impl CadCommand for DimBaselineCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }

src/modules/annotate/dim_continue.rs

@@ -139,6 +139,7 @@ impl CadCommand for DimContinueCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }

src/modules/annotate/dimjogline.rs

@@ -93,6 +93,7 @@ impl CadCommand for DimJogLineCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }

src/modules/annotate/dimtedit.rs

@@ -101,6 +101,7 @@ impl CadCommand for DimTeditCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 

src/modules/annotate/leader_cmd.rs

@@ -201,6 +201,7 @@ fn preview_wire(pts: &[Vec3]) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }
 

src/modules/annotate/linear_dim.rs

@@ -112,6 +112,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }
 

src/modules/annotate/mleader_cmd.rs

@@ -154,6 +154,7 @@ fn preview_wire(pts: &[Vec3]) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }
 

src/modules/annotate/mleader_edit.rs

@@ -365,6 +365,7 @@ fn preview_wire(pts: &[Vec3]) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
         key_vertices: vec![],
+        aabb: WireModel::UNBOUNDED_AABB,
     }
 }
 

src/modules/annotate/qdim.rs

@@ -98,6 +98,7 @@ impl CadCommand for QdimCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }

src/modules/annotate/radius_dim.rs

@@ -111,5 +111,6 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         tangent_geoms: vec![],
         aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
     }
 }

src/modules/annotate/table_cmd.rs

@@ -144,6 +144,7 @@ impl CadCommand for TableCommand {
                 tangent_geoms: vec![],
                 aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
             })
         } else {
             None

src/modules/annotate/tolerance_cmd.rs

@@ -97,6 +97,7 @@ impl CadCommand for ToleranceCommand {
             tangent_geoms: vec![],
             aci: 0,
             key_vertices: vec![],
+            aabb: WireModel::UNBOUNDED_AABB,
         })
     }
 }