Initial commit: SpdUp Windows Gaming Booster v1.0.0

- .NET 8 WPF app with full MVVM architecture
- One-click boost: CPU, RAM, GPU, network, services, timer resolution
- Real-time system monitor (LibreHardwareMonitor)
- Auto game detection (30+ games)
- RAM optimizer with kernel-level cleanup
- Network optimizer (TCP registry tweaks)
- Service manager, process manager, shader cache cleaner
- Desktop widget overlay
- Debug log viewer
- Custom dark gaming theme with trans pride colors
- 84 unit tests (xUnit)
- Inno Setup installer script
- Landing page website

Models/AppSettings.cs

@@ -0,0 +1,77 @@
+using System.IO;
+using System.Text.Json;
+
+namespace SpdUp.Models;
+
+/// <summary>
+/// Persisted application settings.
+/// </summary>
+public sealed class AppSettings
+{
+    private static readonly string _filePath = Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "SpdUp", "settings.json");
+
+    // ── General ────────────────────────────────────────────────────────
+    public bool MinimizeToTray { get; set; } = true;
+    public bool StartWithWindows { get; set; } = false;
+    public bool AutoDetectGames { get; set; } = true;
+    public bool AutoBoostOnGameLaunch { get; set; } = true;
+
+    // ── Widget ─────────────────────────────────────────────────────────
+    public bool ShowWidget { get; set; } = false;
+    public bool WidgetCompactMode { get; set; } = true;
+    public double WidgetLeft { get; set; } = 100;
+    public double WidgetTop { get; set; } = 100;
+    public double WidgetOpacity { get; set; } = 0.85;
+    public int WidgetUpdateIntervalMs { get; set; } = 1000;
+    public bool WidgetClickThrough { get; set; } = false;
+
+    // ── Monitoring ─────────────────────────────────────────────────────
+    public int MonitoringIntervalMs { get; set; } = 1000;
+
+    // ── Network ────────────────────────────────────────────────────────
+    public string PingTarget { get; set; } = "8.8.8.8";
+    public string PreferredDns { get; set; } = "1.1.1.1";
+
+    // ── Game Library ───────────────────────────────────────────────────
+    public List<GameEntry> Games { get; set; } = new();
+
+    // ── Boost services to stop ─────────────────────────────────────────
+    public List<string> ServicesToStop { get; set; } = new()
+    {
+        "SysMain", "WSearch", "DiagTrack", "TabletInputService", "MapsBroker",
+        "PcaSvc", "wisvc"
+    };
+
+    // ── Persistence ────────────────────────────────────────────────────
+    private static readonly JsonSerializerOptions _jsonOpts = new()
+    {
+        WriteIndented = true,
+        PropertyNameCaseInsensitive = true
+    };
+
+    public static AppSettings Load()
+    {
+        try
+        {
+            if (File.Exists(_filePath))
+            {
+                var json = File.ReadAllText(_filePath);
+                return JsonSerializer.Deserialize<AppSettings>(json, _jsonOpts) ?? new AppSettings();
+            }
+        }
+        catch { /* return default */ }
+        return new AppSettings();
+    }
+
+    public void Save()
+    {
+        try
+        {
+            var dir = Path.GetDirectoryName(_filePath)!;
+            Directory.CreateDirectory(dir);
+            File.WriteAllText(_filePath, JsonSerializer.Serialize(this, _jsonOpts));
+        }
+        catch { /* best-effort */ }
+    }
+}