feat(core): share file list patterns between glob and grep tools (#6359)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Arya Gummadi <aryagummadi@google.com>

packages/core/src/tools/glob.test.ts

@@ -29,6 +29,9 @@ describe('GlobTool', () => {
     getFileFilteringRespectGitIgnore: () => true,
     getTargetDir: () => tempRootDir,
     getWorkspaceContext: () => createMockWorkspaceContext(tempRootDir),
+    getFileExclusions: () => ({
+      getGlobExcludes: () => [],
+    }),
   } as unknown as Config;
 
   beforeEach(async () => {