fix(dicom-pdf): enhance PDF loading with authentication support

- move authenticated rendered media loading into the datasource\n- route DICOM video display sets through Cornerstone video viewports\n- add a 3.12 to 3.13 migration note for the removed DICOM-video viewport namespace

extensions/default/src/MergeDataSource/index.ts

@@ -242,6 +242,24 @@ function createMergeDataSourceApi(
           defaultDataSourceName,
           extensionManager,
         }),
+      renderedURL: (...args: unknown[]) => {
+        const [dataSource] = extensionManager.getDataSources(defaultDataSourceName);
+        const renderedURL = get(dataSource, 'retrieve.renderedURL');
+
+        if (renderedURL) {
+          return renderedURL.apply(dataSource, args);
+        }
+
+        const directURL = get(dataSource, 'retrieve.directURL');
+
+        if (!directURL) {
+          return Promise.resolve({ url: null });
+        }
+
+        return Promise.resolve(directURL.apply(dataSource, [args[0]])).then(url => ({
+          url: (url as string | undefined | null) || null,
+        }));
+      },
       series: {
         metadata: (...args: unknown[]) =>
           callForAllDataSourcesAsync({