Showed the Rust compiler actually used on the information page (#1160)

app/MindWork AI Studio/Tools/Metadata/MetaDataAttribute.cs

@@ -7,7 +7,6 @@ public class MetaDataAttribute(
     string buildTime,
     uint buildNum,
     string dotnetSdkVersion,
-    string rustVersion,
     string mudBlazorVersion,
     string tauriVersion,
     string appCommitHash
@@ -20,12 +19,11 @@ public class MetaDataAttribute(
     public uint BuildNum => buildNum;
     
     /// <summary>
-    /// Gets the .NET SDK which built the app. The .NET runtime which runs it is <see cref="DotnetRuntimeVersion.Current"/>.
+    /// Gets the .NET SDK which built the app. The .NET runtime which runs it is <see cref="DotnetRuntimeVersion.Current"/>,
+    /// and the Rust compiler which built the runtime is <see cref="Rust.RuntimeInfoResponse.RustVersion"/>.
     /// </summary>
     public string DotnetSdkVersion => dotnetSdkVersion;
-    
-    public string RustVersion => rustVersion;
-    
+
     public string MudBlazorVersion => mudBlazorVersion;
     
     public string TauriVersion => tauriVersion;

app/MindWork AI Studio/Tools/Rust/RuntimeInfoResponse.cs

@@ -1,3 +1,11 @@
 namespace AIStudio.Tools.Rust;
 
-public readonly record struct RuntimeInfoResponse(string WorkingDirectory, string ExecutablePath, LinuxPackageType LinuxPackageType, InstallationKind InstallationKind);
+/// <summary>
+/// What the runtime tells about itself once the app starts.
+/// </summary>
+/// <param name="WorkingDirectory">The working directory of the runtime.</param>
+/// <param name="ExecutablePath">The path of the runtime's executable.</param>
+/// <param name="LinuxPackageType">How the Linux build was packaged.</param>
+/// <param name="InstallationKind">Whether and how the app may update itself.</param>
+/// <param name="RustVersion">The Rust compiler which built the runtime, e.g., "1.99.1 (commit 58cf8f9c3)". A runtime older than the app, as a development build may be, sends none.</param>
+public readonly record struct RuntimeInfoResponse(string WorkingDirectory, string ExecutablePath, LinuxPackageType LinuxPackageType, InstallationKind InstallationKind, string? RustVersion);