refactored data providers with centralized cache resolution, unified UI using custom dialogs and bottom sheets, and enhanced network error handling for Dio and TLS errors

lib/state/app/infrastructure/data_loader/data_loader.dart

@@ -12,21 +12,15 @@ abstract class DataLoader<TResult> {
   }
 
   Future<TResult> run() async {
-    var fetcher = fetch();
-    await Future.wait([
-      fetcher,
-      Future.delayed(const Duration(milliseconds: 500)) // TODO tune or remove
-    ]);
-
-    var response = await fetcher;
+    final response = await fetch();
     try {
       return assemble(DataLoaderResult(
         json: jsonDecode(response.data!),
         headers: response.headers.map.map((key, value) => MapEntry(key, value.join(';'))),
       ));
-    } catch(trace, e) {
-      log(trace.toString());
-      throw e;
+    } catch (e, stack) {
+      log('DataLoader assemble failed', error: e, stackTrace: stack);
+      rethrow;
     }
   }