Should be it

Icarus/.editconfig

@@ -0,0 +1,19 @@
+# Top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.cs]
+# Use 'var' when possible
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+# Use expression body for methods
+csharp_style_expression_bodied_methods = true:silent

Models/.editconfig

@@ -0,0 +1,19 @@
+# Top-most EditorConfig file
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.cs]
+# Use 'var' when possible
+csharp_style_var_for_built_in_types = true:suggestion
+csharp_style_var_when_type_is_apparent = true:suggestion
+csharp_style_var_elsewhere = true:suggestion
+
+# Use expression body for methods
+csharp_style_expression_bodied_methods = true:silent

Models/AccessLevel.cs

@@ -7,6 +7,7 @@ public class AccessLevel
 {
     #region Properties
     [Newtonsoft.Json.JsonProperty("id")]
+    [Key]
     public Guid Id { get; set; }
     [Newtonsoft.Json.JsonProperty("level")]
     public string? Level { get; set; }