Mock handlers can't be overridden across page reloads in Playwright.
Keep only tests that work with default mock settings: verify dialog
doesn't appear when consent is already given, and verify Settings
panel shows privacy toggles.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Also adds Playwright smoke test for consent dialog and mock handler
for reinit_telemetry command.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>