fix: port 7 web features and repair the endless-loading screens

Root cause behind most "stuck loading" reports: the backend changed shape
(schedules became an array, location_preferences a string) while the mobile
parser still hard-cast to Map/int. The TypeError was swallowed by a silent
catch that returned null, and screens only handled the success state, so a
parse failure rendered as a permanent spinner. Same class of bug appeared
across service lists via non-null map lookups and a total absence of
request timeouts.

Ported from prosappweb:
- in-app suggestions (POST /suggestions)
- policies/terms from GET /settings/policies
- configurable appointment length (slot_duration_minutes)
- block/unblock calendar slots (POST /services/block)
- GPS city detection on the profile (Nominatim)
- server-side professional search with haversine distance
- retry cooldown after a rejected professional application

Reliability:
- parse schedules array (day_of_week 0=Mon) and string location_preferences
- read times as wall clock, so 08:00 stays 08:00 across timezones
- carry minutes into hours in TimeOfDay.add; a minute-based step used to
  loop forever and freeze the calendar (covered by test/time_slots_test.dart)
- semver update check instead of string equality, which blocked every build
  that did not exactly match the configured version
- request timeouts across all repositories
- surface HTTP >= 400 instead of reporting failed writes as success
- error states with retry instead of an indefinite shimmer

Includes pre-existing uncommitted work from the UI redesign.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/setting_repository/lib/src/entities/entities.dart

@@ -1 +1,2 @@
 export '/src/entities/setting_entity.dart';
+export '/src/entities/policies_entity.dart';

packages/setting_repository/lib/src/entities/policies_entity.dart

@@ -0,0 +1,21 @@
+import 'package:equatable/equatable.dart';
+
+class PoliciesEntity extends Equatable {
+  final String privacy;
+  final String terms;
+
+  const PoliciesEntity({
+    required this.privacy,
+    required this.terms,
+  });
+
+  static PoliciesEntity fromDocument(Map<String, dynamic> doc) {
+    return PoliciesEntity(
+      privacy: doc['privacy'] as String? ?? '',
+      terms: doc['terms'] as String? ?? '',
+    );
+  }
+
+  @override
+  List<Object?> get props => [privacy, terms];
+}

packages/setting_repository/lib/src/entities/setting_entity.dart

@@ -19,6 +19,7 @@ class SettingEntity extends Equatable {
   final String? terminosCondiciones;
   final String? terminosCondicionesTitle;
   final String? terminosCondicionesBody;
+  final num? rejectionWaitDays;
 
   const SettingEntity({
     required this.tarifas,
@@ -39,6 +40,7 @@ class SettingEntity extends Equatable {
     required this.terminosCondiciones,
     required this.terminosCondicionesTitle,
     required this.terminosCondicionesBody,
+    this.rejectionWaitDays,
   });
 
   static SettingEntity fromDocument(Map<String, dynamic> doc) {
@@ -61,6 +63,7 @@ class SettingEntity extends Equatable {
       terminosCondiciones: doc['terminos_condiciones'] as String?,
       terminosCondicionesTitle: doc['terminos_condiciones_title'] as String?,
       terminosCondicionesBody: doc['terminos_condiciones_body'] as String?,
+      rejectionWaitDays: doc['rejection_wait_days'] as num?,
     );
   }
 
@@ -84,6 +87,7 @@ class SettingEntity extends Equatable {
         terminosCondiciones,
         terminosCondicionesTitle,
         terminosCondicionesBody,
+        rejectionWaitDays,
       ];
 
   @override

packages/setting_repository/lib/src/repositories/api_setting_repository.dart

@@ -5,6 +5,8 @@ import 'package:shared_preferences/shared_preferences.dart';
 import 'package:setting_repository/src/entities/entities.dart';
 import 'package:setting_repository/src/repositories/setting_repo.dart';
 
+const _kHttpTimeout = Duration(seconds: 20);
+
 const _base = 'https://backend.prosapp.co/api/v1';
 
 class ApiSettingRepository implements SettingRepository {
@@ -27,22 +29,29 @@ class ApiSettingRepository implements SettingRepository {
       final res = await http.get(
         Uri.parse('$_base/settings'),
         headers: await _headers(),
-      );
-      final data = jsonDecode(res.body);
+      ).timeout(_kHttpTimeout);
+      final data = jsonDecode(res.body) as Map<String, dynamic>;
 
-      // Backend returns {key: string, value: any}[] or a flat map
-      Map<String, dynamic> doc = {};
-      if (data is List) {
-        for (final entry in data) {
-          if (entry is Map) {
-            final key = entry['key']?.toString();
-            final value = entry['value'];
-            if (key != null) doc[key] = value;
-          }
-        }
-      } else if (data is Map) {
-        doc = Map<String, dynamic>.from(data);
-      }
+      // Backend returns nested structure: {version: {android, ios}, soporte: {...}, politicas: {...}}
+      final version = data['version'] as Map<String, dynamic>? ?? {};
+      final soporte = data['soporte'] as Map<String, dynamic>? ?? {};
+      final politicas = data['politicas'] as Map<String, dynamic>? ?? {};
+
+      final doc = <String, dynamic>{
+        'version_android': version['android'],
+        'version_ios': version['ios'],
+        'titulo_soporte': soporte['titulo'] ?? data['support_title'],
+        'parrafo_soporte': soporte['descripcion'] ??
+            soporte['parrafo'] ??
+            data['support_description'],
+        'email_soporte': soporte['email'] ?? data['support_email'],
+        'numero_soporte': soporte['telefono'] ?? data['support_phone'],
+        'dias_soporte': soporte['dias'] ?? data['support_days'],
+        'horas_soporte': soporte['horas'] ?? data['support_hours'],
+        'politicas_privacidad_title': politicas['titulo'],
+        'politicas_privacidad_body': politicas['body'],
+        'rejection_wait_days': data['rejection_wait_days'],
+      };
 
       return SettingEntity.fromDocument(doc);
     } catch (_) {
@@ -69,4 +78,14 @@ class ApiSettingRepository implements SettingRepository {
       );
     }
   }
+
+  @override
+  Future<PoliciesEntity> getPolicies() async {
+    final res = await http.get(
+      Uri.parse('$_base/settings/policies'),
+      headers: await _headers(),
+    ).timeout(_kHttpTimeout);
+    final data = jsonDecode(res.body) as Map<String, dynamic>;
+    return PoliciesEntity.fromDocument(data);
+  }
 }

packages/setting_repository/lib/src/repositories/setting_repo.dart

@@ -2,4 +2,5 @@ import 'package:setting_repository/src/entities/entities.dart';
 
 abstract class SettingRepository {
   Future<SettingEntity> getSettings();
+  Future<PoliciesEntity> getPolicies();
 }