{{/* v0.27.0: Generic container for extension surfaces.
     Extension JS mounts into #extension-mount. The manifest is available
     as window.__MANIFEST__ (injected in base.html). Platform primitives
     (Theme, UI, API, ChatPane, etc.) are loaded by base.html before this
     script runs.

     Extensions can use any component available on the page:
       - ChatPane.create(container, opts)
       - UI.* primitives (toast, confirm, etc.)
       - API.* (authenticated fetch)
       - Theme.* (dark/light queries)
*/}}
{{define "surface-extension"}}
<div id="extension-surface" class="extension-surface"
     data-surface-id="{{.Surface}}">
    <div id="shell-topbar"></div>
    <div id="extension-mount" class="extension-mount" data-ext="{{.Surface}}"></div>
</div>
{{end}}