every plugin route renders a workspace, and it is not a rule you can forget

an exclusionary rule, made structural. a plugin does not render a screen: it
contributes panels and says how they are arranged, and the shell renders
WorkspaceView around them.

    web/panels.ts   appRegistryMetas — at least one panel
    web/layout.ts   defaultLayout — how they are arranged

both required the moment web/ exists, and missing either is refused at discovery
by name and with the reason. tested:

    probeplug: has a web/ directory but is missing web/layout.ts.
    Every plugin route renders a Workspace: contribute panels and a layout,
    not a screen.

there is deliberately no way to export a component. one that could would be free
to render a bare div, a full-page form, or its own navigation, and the platform
would become a shell hosting strangers' layouts rather than one application.
non-compliance is not so much refused as unrepresentable — there is nowhere to
put a screen.

the shell registers <prefix> and <prefix>/:section, exactly as the core screens
do, so a plugin's sections stay addressable and cmd-clickable, and panels read
useParams independently rather than passing state between themselves.
appTypes.allowed is pinned to that plugin's own keys, so a persisted layout
naming something else falls back instead of rendering another plugin's panel
inside this screen.

the example plugin is rebuilt to model it — two panels, a layout, one of them
calling its own /api/example/ping through useClient — because the reference
implementation is what everyone copies.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/apps/officer-web/Screens/Authentication/Layout/Background.tsx

@@ -1,5 +1,5 @@
-import { DuckAvatar } from "./DuckAvatar";
-import { PixelGrid } from "@/components/PixelGrid";
+import { DuckAvatar } from './DuckAvatar';
+import { PixelGrid } from '@/components/PixelGrid';
 import { useGlobal } from 'hooks/useGlobal';
 const landscapebg = '/landscape1.webp';
 
@@ -19,4 +19,4 @@ export function Background() {
       {!duckHidden && <DuckAvatar showDebug={false} fullControlMode={false} currentSection={0} />}
     </div>
   );
-};
+}