fix(plex): coerce PlexHomeUser fields against account-API drift

Same clients.plex.tv surface that broke in #1488: /home/users powers
first sign-in and profile setup, so a drifted scalar shape would kill
the whole fetch. Coerce strings, bools, and ints tolerantly instead of
hard-casting.

lib/models/plex/plex_home_user.dart

@@ -1,30 +1,39 @@
 import 'package:json_annotation/json_annotation.dart';
 
+import '../../utils/json_utils.dart';
+
 part 'plex_home_user.g.dart';
 
+/// Parsed from the clients.plex.tv `/api/v2/home/users` account API — the
+/// same drift-prone surface as PlexUserProfile (#1488), so scalar fields
+/// coerce tolerantly instead of hard-casting.
 @JsonSerializable()
 class PlexHomeUser {
-  @JsonKey(defaultValue: 0)
+  @JsonKey(fromJson: _intOr0)
   final int id;
-  @JsonKey(defaultValue: '')
+  @JsonKey(readValue: readStringField, defaultValue: '')
   final String uuid;
-  @JsonKey(defaultValue: 'Unknown')
+  @JsonKey(readValue: readStringField, defaultValue: 'Unknown')
   final String title;
+  @JsonKey(readValue: readStringField)
   final String? username;
+  @JsonKey(readValue: readStringField)
   final String? email;
+  @JsonKey(readValue: readStringField)
   final String? friendlyName;
-  @JsonKey(defaultValue: '')
+  @JsonKey(readValue: readStringField, defaultValue: '')
   final String thumb;
-  @JsonKey(defaultValue: false)
+  @JsonKey(fromJson: flexibleBool)
   final bool hasPassword;
-  @JsonKey(defaultValue: false)
+  @JsonKey(fromJson: flexibleBool)
   final bool restricted;
+  @JsonKey(fromJson: flexibleInt)
   final int? updatedAt;
-  @JsonKey(defaultValue: false)
+  @JsonKey(fromJson: flexibleBool)
   final bool admin;
-  @JsonKey(defaultValue: false)
+  @JsonKey(fromJson: flexibleBool)
   final bool guest;
-  @JsonKey(defaultValue: false)
+  @JsonKey(fromJson: flexibleBool)
   final bool protected;
 
   PlexHomeUser({
@@ -54,3 +63,5 @@ class PlexHomeUser {
   bool get isGuestUser => guest;
   bool get requiresPassword => protected;
 }
+
+int _intOr0(Object? v) => flexibleInt(v) ?? 0;

lib/models/plex/plex_home_user.g.dart

@@ -7,19 +7,19 @@ part of 'plex_home_user.dart';
 // **************************************************************************
 
 PlexHomeUser _$PlexHomeUserFromJson(Map<String, dynamic> json) => PlexHomeUser(
-  id: (json['id'] as num?)?.toInt() ?? 0,
-  uuid: json['uuid'] as String? ?? '',
-  title: json['title'] as String? ?? 'Unknown',
-  username: json['username'] as String?,
-  email: json['email'] as String?,
-  friendlyName: json['friendlyName'] as String?,
-  thumb: json['thumb'] as String? ?? '',
-  hasPassword: json['hasPassword'] as bool? ?? false,
-  restricted: json['restricted'] as bool? ?? false,
-  updatedAt: (json['updatedAt'] as num?)?.toInt(),
-  admin: json['admin'] as bool? ?? false,
-  guest: json['guest'] as bool? ?? false,
-  protected: json['protected'] as bool? ?? false,
+  id: _intOr0(json['id']),
+  uuid: readStringField(json, 'uuid') as String? ?? '',
+  title: readStringField(json, 'title') as String? ?? 'Unknown',
+  username: readStringField(json, 'username') as String?,
+  email: readStringField(json, 'email') as String?,
+  friendlyName: readStringField(json, 'friendlyName') as String?,
+  thumb: readStringField(json, 'thumb') as String? ?? '',
+  hasPassword: flexibleBool(json['hasPassword']),
+  restricted: flexibleBool(json['restricted']),
+  updatedAt: flexibleInt(json['updatedAt']),
+  admin: flexibleBool(json['admin']),
+  guest: flexibleBool(json['guest']),
+  protected: flexibleBool(json['protected']),
 );
 
 Map<String, dynamic> _$PlexHomeUserToJson(PlexHomeUser instance) =>