## Description
This PR updates the UI to avoid rendering workspace schedule settings
(autostop, autostart, etc.) for prebuilt workspaces. Instead, it
displays an informational message with a link to the relevant
documentation.
## Changes
* Introduce `IsPrebuild` parameter to `convertWorkspace` to indicate
whether the workspace is a prebuild.
* Prevent the Workspace Schedule settings form from rendering in the UI
for prebuilt workspaces.
* Display an info alert with a link to documentation when viewing a
prebuilt workspace.
<img width="2980" height="864" alt="Screenshot 2025-07-10 at 13 16 13"
src="https://github.com/user-attachments/assets/5f831c21-50bb-4e05-beea-dbeb930ddff8"
/>
Relates with: https://github.com/coder/coder/pull/18762
---------
Co-authored-by: BrunoQuaresma <bruno_nonato_quaresma@hotmail.com>
