Add startup application support and dialog for user prompts

DevDriveConfig.cs

@@ -36,6 +36,12 @@ public class DevDriveConfig
     /// </summary>
     [JsonPropertyName("paths")]
     public List<SymlinkEntry> Paths { get; set; } = [];
+
+    /// <summary>
+    /// List of applications to prompt for launch after mounting.
+    /// </summary>
+    [JsonPropertyName("startupApps")]
+    public List<StartupApp> StartupApps { get; set; } = [];
 }
 
 /// <summary>
@@ -55,3 +61,39 @@ public class SymlinkEntry
     [JsonPropertyName("path")]
     public string Path { get; set; } = string.Empty;
 }
+
+/// <summary>
+/// Represents an application to launch after mounting.
+/// </summary>
+public class StartupApp
+{
+    /// <summary>
+    /// Display name shown in the dialog.
+    /// </summary>
+    [JsonPropertyName("name")]
+    public string Name { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Path to the executable.
+    /// </summary>
+    [JsonPropertyName("path")]
+    public string Path { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Command line arguments (optional).
+    /// </summary>
+    [JsonPropertyName("arguments")]
+    public string Arguments { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Working directory (optional, defaults to executable's directory).
+    /// </summary>
+    [JsonPropertyName("workingDirectory")]
+    public string WorkingDirectory { get; set; } = string.Empty;
+
+    /// <summary>
+    /// Whether this app is checked by default in the dialog.
+    /// </summary>
+    [JsonPropertyName("checkedByDefault")]
+    public bool CheckedByDefault { get; set; } = true;
+}