Adds bu-2-0-mini-preview as an accepted model id and makes it the
constructor default, so a bare ChatBrowserUse() now routes there.
bu-2-0 is unchanged: still accepted, still documented as the premium
option, and bu-latest still resolves to it. Keeping 'latest' on the
stable line means existing callers pinned to that alias do not silently
move onto a preview model; only the bare-constructor default moves.
Pricing is registered alongside the model so cost tracking does not
silently report $0 for what is now the default. This model has no cache
discount, so cached reads bill at the input rate.
Examples, README and the model reference are updated to the new default.
The model reference also claimed bu-latest resolved to bu-1-0, which has
not been true since bu-2-0 shipped; corrected here.
Replaces pixel-based scrolling with page unit determination, allowing for more intuitive scroll actions by specifying the number of pages. Adjusts related documentation, examples, and tests to reflect this change for improved code consistency and user experience.
Introduces ability to scroll by a specific number of pixels
via a new 'amount' parameter, defaulting to one page height
if unspecified. Updates relevant documentation and examples
to reflect these changes, enhancing navigation precision.
Improves user experience by allowing finer control over page
scrolling actions.
Relates to user feedback on scroll improvements.