feat(ui): establish semantic colors and focus foundation

job-tracker-ui/src/views/CvBuilderEditor.tsx

@@ -942,7 +942,9 @@ function SectionRow({
       variant="outlined"
       {...dragProps}
       sx={{
-        opacity: dragging ? 0.4 : row.hidden ? 0.58 : 1,
+        // Hidden in the document is not disabled in the editor: keep names and
+        // controls readable. The visibility icon/label still conveys inclusion.
+        opacity: dragging ? 0.4 : 1,
         borderTop: over ? "2px solid" : undefined, borderTopColor: over ? "primary.main" : undefined,
         transition: "opacity 150ms ease, border-color 120ms ease, box-shadow 150ms ease",
         overflow: "hidden", "&:hover": { boxShadow: 1 },
@@ -1062,7 +1064,7 @@ function EntryEditor({ section, row, settings, onPatch, onUpdateSettings }: {
         return (
           <Paper key={key} variant="outlined" {...drag.getItemProps(i)}
             sx={{
-              p: 0.75, opacity: drag.dragIndex === i ? 0.4 : hidden ? 0.5 : 1, cursor: "grab",
+              p: 0.75, opacity: drag.dragIndex === i ? 0.4 : 1, cursor: "grab",
               borderTop: drag.overIndex === i && drag.dragIndex !== i ? "2px solid" : undefined,
               borderTopColor: "primary.main", transition: "opacity 150ms ease",
             }}>