fix: Reenable ReSharper annotations, fix warnings

source/VMelnalksnis.NordigenDotNet/Requisitions/Requisition.cs

@@ -52,7 +52,7 @@ public record Requisition
 
 	/// <summary>Gets the end-user-agreement of this requisition.</summary>
 	[JsonIgnore]
-	public Guid? Agreement => string.IsNullOrWhiteSpace(AgreementValue) ? null : Guid.Parse(AgreementValue);
+	public Guid? Agreement => string.IsNullOrWhiteSpace(AgreementValue) ? null : Guid.Parse(AgreementValue!);
 
 	/// <summary>Gets or sets a two-letter country code (ISO 639-1).</summary>
 	[JsonPropertyName("user_language")]

source/VMelnalksnis.NordigenDotNet/Serialization/NordigenSerializationContext.cs

@@ -12,7 +12,7 @@ using VMelnalksnis.NordigenDotNet.Requisitions;
 
 namespace VMelnalksnis.NordigenDotNet.Serialization;
 
-/// <inheritdoc />
+/// <inheritdoc cref="JsonSerializerContext" />
 [JsonSourceGenerationOptions(GenerationMode = JsonSourceGenerationMode.Metadata, IgnoreReadOnlyProperties = true)]
 [JsonSerializable(typeof(Account))]
 [JsonSerializable(typeof(AccountDetailsWrapper))]

source/VMelnalksnis.NordigenDotNet/Tokens/TokenSerializationContext.cs

@@ -6,7 +6,7 @@ using System.Text.Json.Serialization;
 
 namespace VMelnalksnis.NordigenDotNet.Tokens;
 
-/// <inheritdoc />
+/// <inheritdoc cref="JsonSerializerContext" />
 [JsonSerializable(typeof(AccessToken))]
 [JsonSerializable(typeof(Token))]
 [JsonSerializable(typeof(TokenCreation))]