v1.2.0

Adds production-grade engineering features and tools: 2D GD&T (feature control frames + datum features) via engineering/gdt.py, ISO‑129 dimension tolerance support (engineering/tolerances.py) and an ezdxf/COM plumbing for toleranced dims, a scalar drawing score + invalidity ratio (engineering/scoring.py) wired into drawing_finalize, in-place entity editors (entity_edit_text/entity_edit_geometry), and a friendly drawing_settings facade. Includes server tool wiring, COM/ezdxf backend implementations, datum-consistency critique, many unit tests, README/CLAUDE/CHANGELOG updates, and a version bump to 1.2.0. Also corrects COM backend capability label (entities_2d).

engineering/plan_spec.py

@@ -20,6 +20,7 @@ CritiqueFocus = Literal[
     "untrimmed_corner",
     "duplicate_entities",
     "construction_left",
+    "gdt",
 ]
 SnapType = Literal["end", "mid", "center", "quad", "int", "perp", "near"]
 
@@ -30,6 +31,7 @@ ALL_CRITIQUE_FOCUSES: tuple[CritiqueFocus, ...] = (
     "untrimmed_corner",
     "duplicate_entities",
     "construction_left",
+    "gdt",
 )