add fingerprinting configuration

app/lib/features/user/domain/services/fingerprinting.dart

@@ -0,0 +1,20 @@
+import 'dart:convert';
+
+import 'package:flutter/services.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import 'package:weblibre/features/user/data/models/rfp_target.dart';
+
+part 'fingerprinting.g.dart';
+
+@Riverpod(keepAlive: true)
+Future<List<RFPTarget>> fingerprintTargets(Ref ref) async {
+  final json =
+      await rootBundle
+              .loadString('assets/preferences/rfp_targets.json')
+              .then(jsonDecode)
+          as List<dynamic>;
+
+  return json
+      .map((e) => RFPTarget.fromJson(e as Map<String, dynamic>))
+      .toList();
+}