phase-6: add registry-driven dynamic page-section-widget rendering engine

src/app/widgets/contracts/widget-component.contract.ts

@@ -0,0 +1,20 @@
+import { Type } from '@angular/core';
+
+export interface WidgetRenderContext {
+  pageId: string;
+  sectionId: string;
+  locale?: string;
+}
+
+export interface RegisteredWidget {
+  type: string;
+  version: string;
+  component: Type<unknown>;
+}
+
+export interface ResolvedWidget {
+  type: string;
+  version: string;
+  component: Type<unknown>;
+  props: Record<string, unknown>;
+}