Полный рефакторинг api. Вынесено отдельно api passport

YandexMusic.API/Models/Passport/YCheckAvailabilityResult.cs

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+using System.Text.Json.Serialization;
+
+namespace YandexMusic.API.Models.Passport;
+
+public class YCheckAvailabilityResult
+{
+    [JsonPropertyName("antifraudScore")]
+    public string AntifraudScore { get; set; } = string.Empty;
+
+    [JsonPropertyName("hasAvailableAccounts")]
+    public bool HasAvailableAccounts { get; set; }
+
+    [JsonPropertyName("flnFlowRequired")]
+    public bool FlnFlowRequired { get; set; }
+
+    [JsonPropertyName("can_use_push")]
+    public bool CanUsePush { get; set; }
+
+    [JsonPropertyName("can_use_webauthn")]
+    public bool CanUseWebauthn { get; set; }
+
+    [JsonPropertyName("has_master")]
+    public bool HasMaster { get; set; }
+
+    [JsonPropertyName("is_session_mastered")]
+    public bool IsSessionMastered { get; set; }
+
+    [JsonPropertyName("does_master_have_free_slots")]
+    public bool DoesMasterHaveFreeSlots { get; set; }
+
+    [JsonPropertyName("allowed_registration_flows")]
+    public List<object> AllowedRegistrationFlows { get; set; } = new();
+
+    [JsonPropertyName("SuggestBy")]
+    public string SuggestBy { get; set; } = string.Empty;
+
+    [JsonPropertyName("master_info")]
+    public YMasterInfo? MasterInfo { get; set; }
+}