Make --allowed-tools work in non-interactive mode (#9114)

Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>

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

@@ -61,6 +61,7 @@ describe('ShellTool', () => {
         .mockReturnValue(createMockWorkspaceContext('/test/dir')),
       getGeminiClient: vi.fn(),
       getShouldUseNodePtyShell: vi.fn().mockReturnValue(false),
+      isInteractive: vi.fn().mockReturnValue(true),
     } as unknown as Config;
 
     shellTool = new ShellTool(mockConfig);