feat(browser): implement input blocker overlay during automation (#21132)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Gaurav <39389231+gsquared94@users.noreply.github.com>
Co-authored-by: Gaurav Ghosh <gaghosh@google.com>

packages/core/src/agents/browser/browserAgentInvocation.test.ts

@@ -19,6 +19,7 @@ import {
 vi.mock('../../utils/debugLogger.js', () => ({
   debugLogger: {
     log: vi.fn(),
+    warn: vi.fn(),
     error: vi.fn(),
   },
 }));