Feature request: native "open browser panel" action that doesn't require a model turn

Problem

Opening the Browser preview panel currently requires sending a prompt that the model processes end-to-end (system prompt, session context, reasoning) — even though the action itself (open a URL in the side panel) is a trivial UI operation. This burns tokens/context just to get a page on screen before the user has even asked the agent to do anything.

In comparison, other editors (e.g. Cursor) let you open a browser/preview panel directly from the UI, independent of the model — no prompt, no token cost.

Request

Add a native UI control (button/shortcut) to open the Browser/Preview panel with a URL, that works without invoking the model. This would let users set up their working context (open a page, select an item, review a product) before writing their first prompt.

Context

Currently the only way to open the panel is via an MCP browser tool the model calls, which requires a full conversational turn.