fix(ui): Box, Cylinder, Sphere, Torus and Coil dialogs show the unit of their sizes (#630) (#709)

The Box, Cylinder, Sphere, Torus and Coil dialogs now start their sizes in the design's units with the unit written out ("20 mm", "20 in"), like the other dialogs. OK makes the same sizes as before. Fixes #630.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

docs/book/src/guide/parameters.md

@@ -23,8 +23,9 @@ parameter updates every expression, dimension and feature input that uses it, an
 in use can't be deleted (the error lists its users).
 
 The design's units (Document Settings in the browser: mm, cm, m, in or ft) set how a bare number
-typed into a feature is read. In an inch design `2` means 2 in. Changing the units never moves
-existing geometry.
+typed into a feature is read. In an inch design `2` means 2 in. The Box, Cylinder, Sphere, Torus
+and Coil dialogs start with their sizes in the design's units, unit shown (`20 mm`, `20 in`).
+Changing the units never moves existing geometry.
 
 Parameters export to and import from CSV or JSON (`parameters.export`, `parameters.import`).
 **Configurations** (`config.*`) keep a table of rows, each with its own parameter values and