hasComposition()

* renderRegion()
* draft and published-state handling
* document and placement scheduling
* disabled-placement filtering
* ordered region rendering
* safe fallback when composition tables or document views are missing
* compatibility with common alternative column names

Modules/Content/Resources/views/documents/unsupported.blade.php

@@ -1,3 +0,0 @@
-@if(app()->hasDebugModeEnabled())
-<!-- Unsupported content renderer: {{ $document->type?->renderer }} -->
-@endif