Add plugin framework and settings UI

packages/plugins/examples/plugin-hello-world-example/src/ui/index.tsx

@@ -0,0 +1,17 @@
+import type { PluginWidgetProps } from "@paperclipai/plugin-sdk/ui";
+
+const WIDGET_LABEL = "Hello world plugin widget";
+
+/**
+ * Example dashboard widget showing the smallest possible UI contribution.
+ */
+export function HelloWorldDashboardWidget({ context }: PluginWidgetProps) {
+  return (
+    <section aria-label={WIDGET_LABEL}>
+      <strong>Hello world</strong>
+      <div>This widget was added by @paperclipai/plugin-hello-world-example.</div>
+      {/* Include host context so authors can see where scoped IDs come from. */}
+      <div>Company context: {context.companyId}</div>
+    </section>
+  );
+}