feat(tablestyle): complete field coverage (flow, description, cell data + borders)

Table Style editor now exposes every TableStyle / RowCellStyle field:
- General: description, flow direction (Down/Up dropdown).
- Per cell: data type, unit type, format string, plus all six borders
  (left/right/top/bottom/horizontal-inside/vertical-inside) with line
  type (Single/Double), line weight, color (ACI), double-line spacing
  and a visibility toggle.
Border type/visibility apply immediately; the numeric border fields and
data/unit/format are written by the existing "Apply cell" button.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/view.rs

@@ -119,10 +119,17 @@ impl OpenCADStudio {
                 selected_style,
                 &self.ts_hmargin,
                 &self.ts_vmargin,
+                &self.ts_description,
                 &self.ts_cell_textstyle,
                 &self.ts_cell_height,
                 &self.ts_cell_textcolor,
                 &self.ts_cell_fillcolor,
+                &self.ts_cell_datatype,
+                &self.ts_cell_unittype,
+                &self.ts_cell_format,
+                &self.ts_border_lw,
+                &self.ts_border_color,
+                &self.ts_border_spacing,
             );
         }
         if Some(window_id) == self.mlstyle_window {