move models to shared, make new admin project

CannedNet.Shared/Models/RecNetResult.cs

@@ -0,0 +1,20 @@
+using System.Text.Json.Serialization;
+
+namespace CannedNet;
+
+public class RecNetResultWithValue<T> : RecNetResult
+{
+    [JsonPropertyName("value")] public required T? Value { get; set; }
+}
+public class RecNetResult
+{
+    public static RecNetResult Ok() => new RecNetResult { Success = true };
+    public static RecNetResult Err(string error) => new RecNetResult { Success = false, Error = error };
+    public static RecNetResultWithValue<T> Ok<T>(T value) => new RecNetResultWithValue<T> { Success = true, Value = value };
+    public static RecNetResultWithValue<T> Err<T>(string error) => new RecNetResultWithValue<T> { Success = false, Error = error, Value = default };
+
+    [JsonPropertyName("success")] public bool Success { get; set; }
+
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    [JsonPropertyName("error")] public string? Error { get; set; }
+}