fix: CLAUDE.md compatibility for GEMINI.md '@' file import behavior (#2978)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Allen Hutchison <adh@google.com>

packages/core/src/utils/memoryDiscovery.test.ts

@@ -305,10 +305,12 @@ Subdir memory
       false,
       new FileDiscoveryService(projectRoot),
       [],
+      'tree',
       {
         respectGitIgnore: true,
         respectGeminiIgnore: true,
       },
+      200, // maxDirs parameter
     );
 
     expect(result).toEqual({
@@ -334,6 +336,7 @@ My code memory
       true,
       new FileDiscoveryService(projectRoot),
       [],
+      'tree', // importFormat
       {
         respectGitIgnore: true,
         respectGeminiIgnore: true,