Price change history and improved embed link options

Two months with a focused set of additions.

Price change history for units

Units now keep a price change history. When a unit's price changes, whether through a VoxDeveloper sync or directly, the old price and the date of the change are recorded. The full history is available to any custom integration you build that wants to show it to buyers.

The embed setup (the tool that generates the code for dropping the viewer into your own website) now exposes more options right in the dashboard, each with a tooltip explaining what it does. Two stand out: you can turn off the inquiry button when you're using your own contact flow, and there's a mode for custom integrations where you want to catch the unit click and handle it yourself rather than opening the built-in panel.

Mobile popover sizes

The unit detail popovers in the viewer were too wide on small screens. They now size correctly on mobile, which matters for buyers browsing on a phone.

Beyond these, the period included some build fixes and groundwork.