replace: swap prosappweb content for prosapp_web_app (more complete version)

prosapp_web_app has chat, dashboard, calendar, support, 13 providers and
Fluro URL routing. Keep Dockerfile + nginx.conf from previous prosappweb.
Upgrade google_fonts 6.2.1 → 8.1.0 (Dart 3.12 compat fix).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/models/servicio_profesional.dart

@@ -0,0 +1,20 @@
+import 'package:prosapp_web_app/models/service.dart';
+import 'package:prosapp_web_app/models/usuario.dart';
+
+class ServicioProfesional {
+  final Service service;
+  final Usuario user;
+
+  ServicioProfesional({
+    required this.user,
+    required this.service,
+  });
+
+  @override
+  String toString() {
+    return '''UserProfessional{
+      myUser: $user, 
+      service: $service
+      }''';
+  }
+}