Fix GridTable: show cell.text when it diverges from word_boxes

Post-processing steps like 5h (slash-IPA conversion) modify cell.text
but not individual word_boxes. The colored per-word display showed
stale word_box text instead of the corrected cell text. Now falls
back to the plain input when texts don't match.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-lehrer/components/grid-editor/GridTable.tsx

@@ -365,10 +365,18 @@ export function GridTable({
                   const isBold = col.bold || cell?.is_bold
                   const isLowConf = cell && cell.confidence > 0 && cell.confidence < 60
                   const cellColor = getCellColor(cell)
+                  // Show per-word colored display only when word_boxes
+                  // match the cell text.  Post-processing steps (e.g. 5h
+                  // slash-IPA → bracket conversion) modify cell.text but
+                  // not individual word_boxes, so we fall back to the
+                  // plain input when they diverge.
+                  const wbText = cell?.word_boxes?.map((wb) => wb.text).join(' ') ?? ''
+                  const textMatches = !cell?.text || wbText === cell.text
                   const hasColoredWords =
-                    cell?.word_boxes?.some(
+                    textMatches &&
+                    (cell?.word_boxes?.some(
                       (wb) => wb.color_name && wb.color_name !== 'black',
-                    ) ?? false
+                    ) ?? false)
 
                   return (
                     <div