implemented the Ticker module with a native ProseMirror document renderer and integrated API support for structured content, navigation trees, and proxied files

lib/api/marianumconnect/queries/get_ticker_page_file/get_ticker_page_file.dart

@@ -0,0 +1,35 @@
+import 'dart:typed_data';
+
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+
+/// Downloads the raw bytes of a PROXIED_FILE ticker page from
+/// `GET /api/mobile/v1/ticker/pages/{slug}/file`.
+///
+/// Goes through the shared MC dio so the bearer token is attached automatically
+/// (server enforces page visibility); the bytes are handed to `SfPdfViewer.memory`
+/// so no auth header has to be plumbed into the viewer itself.
+class GetTickerPageFile {
+  final String slug;
+  final Dio _dio;
+
+  GetTickerPageFile(this.slug, {Dio? dio})
+    : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<Uint8List> run() async {
+    try {
+      final response = await _dio.get<List<int>>(
+        MarianumConnectEndpoint.resolve(
+          'ticker/pages/${Uri.encodeComponent(slug)}/file',
+        ),
+        options: Options(responseType: ResponseType.bytes),
+      );
+      return Uint8List.fromList(response.data!);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}