fix(ui): auto-grow item detail-description box + offer money columns to 8rem (consistency across invoice/order/offer)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/admin/pages/InvoiceDetail.tsx

@@ -302,6 +302,9 @@ function SortableInvoiceRow({
           value={item.item_description}
           onChange={(e) => onUpdate(index, "item_description", e.target.value)}
           placeholder="Volitelný"
+          multiline
+          minRows={1}
+          maxRows={8}
         />
         <Box
           sx={{
@@ -404,6 +407,9 @@ function SortableInvoiceRow({
               onUpdate(index, "item_description", e.target.value)
             }
             placeholder="Podrobný popis (volitelný)"
+            multiline
+            minRows={1}
+            maxRows={8}
             sx={{ "& input": { fontSize: "0.8rem", opacity: 0.8 } }}
           />
         </Box>

src/admin/pages/IssuedOrderDetail.tsx

@@ -284,6 +284,9 @@ function SortableOrderRow({
           onChange={(e) => onUpdate(index, "item_description", e.target.value)}
           placeholder="Volitelný"
           InputProps={{ readOnly }}
+          multiline
+          minRows={1}
+          maxRows={8}
         />
         <Box
           sx={{
@@ -397,6 +400,9 @@ function SortableOrderRow({
             }
             placeholder="Podrobný popis (volitelný)"
             InputProps={{ readOnly }}
+            multiline
+            minRows={1}
+            maxRows={8}
             sx={{ "& input": { fontSize: "0.8rem", opacity: 0.8 } }}
           />
         </Box>

src/admin/pages/OfferDetail.tsx

@@ -307,6 +307,9 @@ function SortableItemRow({
           onChange={(e) => onUpdate("item_description", e.target.value)}
           placeholder="Volitelný"
           InputProps={{ readOnly }}
+          multiline
+          minRows={1}
+          maxRows={8}
         />
         <Box
           sx={{
@@ -417,6 +420,9 @@ function SortableItemRow({
             onChange={(e) => onUpdate("item_description", e.target.value)}
             placeholder="Podrobný popis (volitelný)"
             InputProps={{ readOnly }}
+            multiline
+            minRows={1}
+            maxRows={8}
             sx={{ "& input": { fontSize: "0.8rem", opacity: 0.8 } }}
           />
         </Box>
@@ -1611,11 +1617,11 @@ export default function OfferDetail() {
                       <TableCell>Popis</TableCell>
                       <TableCell sx={{ width: "5rem" }}>Množství</TableCell>
                       <TableCell sx={{ width: "5rem" }}>Jednotka</TableCell>
-                      <TableCell sx={{ width: "7rem" }}>Cena/ks</TableCell>
+                      <TableCell sx={{ width: "8rem" }}>Cena/ks</TableCell>
                       <TableCell sx={{ width: "4rem" }} align="center">
                         V ceně
                       </TableCell>
-                      <TableCell sx={{ width: "7rem" }} align="right">
+                      <TableCell sx={{ width: "8rem" }} align="right">
                         Celkem
                       </TableCell>
                       {!readOnly && <TableCell sx={{ width: "3rem" }} />}