Product Roundup #27: faster Studio cold starts, skip counts on the dashboard and preview fixes

A round of smaller improvements across Studio, the dashboard and the admin UI.

Studio reliability and navigation

• Studio sandbox cold-starts are now faster and no longer show a "State change in progress" error on first load.
• The "Open preview in new tab" action now opens the page you're actually looking at, not the root URL.
• Annotation bubble clicks work correctly again, and markers stay visible even when select mode is turned off.

Dashboard and data feeds

• Skip counts now show directly in the dashboard so you can spot skipped records without digging into logs.

General UI polish

• Duplicating a storage now shows a confirmation dialog so you don't create accidental copies.
• Notification cards can be collapsed again after expanding them.