feat(file-search): Add support for non-recursive file search (#5648)

Co-authored-by: Jacob Richman <jacob314@gmail.com>

packages/core/src/utils/filesearch/crawlCache.ts

@@ -17,10 +17,14 @@ const cacheTimers = new Map<string, NodeJS.Timeout>();
 export const getCacheKey = (
   directory: string,
   ignoreContent: string,
+  maxDepth?: number,
 ): string => {
   const hash = crypto.createHash('sha256');
   hash.update(directory);
   hash.update(ignoreContent);
+  if (maxDepth !== undefined) {
+    hash.update(String(maxDepth));
+  }
   return hash.digest('hex');
 };