Add project files

Models/ProjectModel.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace NexvaneHub.Models;
+
+/// <summary>
+/// Plain data describing a project entry. Kept free of INotifyPropertyChanged
+/// on purpose - ProjectItemViewModel wraps this for anything the UI binds to,
+/// and writes edits back onto this instance.
+/// </summary>
+public class ProjectModel
+{
+    public string Name { get; set; } = string.Empty;
+
+    public DateTime LastModified { get; set; }
+
+    /// <summary>Not user-editable in the UI - tied to where the project lives on disk.</summary>
+    public string Directory { get; set; } = string.Empty;
+
+    public string ThumbnailPath { get; set; } = string.Empty;
+
+    public string ProjectVersion { get; set; } = "1.0.0";
+
+    public string SdkVersion { get; set; } = "1.4.2";
+
+    public string DefaultCompiler { get; set; } = "MSVC";
+
+    public string DefaultArchitecture { get; set; } = "Auto";
+}