BREAKING: KCL @settings are the source of truth for units (#5808)

src/lib/constants.ts

@@ -1,4 +1,5 @@
 import { Models } from '@kittycad/lib/dist/types/src'
+import { UnitAngle, UnitLength } from '@rust/kcl-lib/bindings/ModelingCmd'
 
 export const APP_NAME = 'Modeling App'
 /** Search string in new project names to increment as an index */
@@ -168,6 +169,18 @@ export const ZOO_STUDIO_PROTOCOL = 'zoo-studio'
  */
 export const ASK_TO_OPEN_QUERY_PARAM = 'ask-open-desktop'
 
+/**
+ * When no annotation is in the KCL file to specify the defaults, we use these
+ * default units.
+ */
+export const DEFAULT_DEFAULT_ANGLE_UNIT: UnitAngle = 'degrees'
+
+/**
+ * When no annotation is in the KCL file to specify the defaults, we use these
+ * default units.
+ */
+export const DEFAULT_DEFAULT_LENGTH_UNIT: UnitLength = 'mm'
+
 /** Real execution. */
 export const EXECUTION_TYPE_REAL = 'real'
 /** Mock execution. */