Register full CDP requirements feature (#28769)

register cdp requirements feature flag

codex-rs/core/src/config/config_tests.rs

@@ -9752,6 +9752,7 @@ async fn browser_feature_requirements_are_valid() -> std::io::Result<()> {
 [features]
 in_app_browser = false
 browser_use = false
+browser_use_full_cdp_access = false
 "#,
             ),
         )
@@ -9760,6 +9761,7 @@ browser_use = false
 
     assert!(!config.features.enabled(Feature::InAppBrowser));
     assert!(!config.features.enabled(Feature::BrowserUse));
+    assert!(!config.features.enabled(Feature::BrowserUseFullCdpAccess));
 
     Ok(())
 }