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/utils/time_of_day_utils.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+import 'package:prosapp_web_app/utils/time_of_day_extension.dart';
+
+class TimeOfDayUtils {
+  static List<TimeOfDay> genRanges(TimeOfDay timeStart, TimeOfDay timeEnd) {
+    List<TimeOfDay> ranges = [];
+    TimeOfDay current = timeStart;
+    while (current.isBefore(timeEnd)) {
+      ranges.add(current);
+      // Sumar 2 horas al objeto DateTime
+      current = current.add(hour: 2);
+    }
+    return ranges;
+  }
+}