style: Rename index to cell_index in search_cells results

Author: snehshah22

notebook_mcp/dist/index.js

@@ -18127,7 +18127,7 @@ async function searchCells(notebookPath, query, caseSensitive = false) {
       });
       if (matchingLines.length > 0) {
         matches.push({
-          index,
+          cell_index: index,
           type: cell.cell_type,
           matches: matchingLines
         });

notebook_mcp/tools/search_cells.ts

@@ -43,7 +43,7 @@ export async function searchCells(
 
       if (matchingLines.length > 0) {
         matches.push({
-          index,
+          cell_index: index,
           type: cell.cell_type,
           matches: matchingLines,
         });