DotNetDumpComponent: add global .NET tools dir to PATH

The `dotnet tool install --global` shim is placed in
%USERPROFILE%\.dotnet\tools, which was not on PATH, so `dotnet-dump`
was not callable by name during container runs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: PostSharpAgent

eng/docker/Dockerfile

@@ -65,6 +65,8 @@ RUN & .\dotnet-install.ps1 -Version 9.0.310 -InstallDir 'C:\Program Files\dotnet
 # .NET Dump Tool
 RUN dotnet tool install --global dotnet-dump;
 
+ENV PATH="C:\Users\ContainerAdministrator\.dotnet\tools;${PATH}"
+
 
 # Epilogue
 # Create directories for mountpoints

eng/docker/Dockerfile.claude

@@ -65,6 +65,8 @@ RUN & .\dotnet-install.ps1 -Version 9.0.310 -InstallDir 'C:\Program Files\dotnet
 # .NET Dump Tool
 RUN dotnet tool install --global dotnet-dump;
 
+ENV PATH="C:\Users\ContainerAdministrator\.dotnet\tools;${PATH}"
+
 
 # Install Node.js
 RUN Invoke-WebRequest -Uri "https://nodejs.org/dist/v22.0.0/node-v22.0.0-win-x64.zip" -OutFile node.zip; `

eng/docker/Dockerfile.claude.win2022

@@ -65,6 +65,8 @@ RUN & .\dotnet-install.ps1 -Version 9.0.310 -InstallDir 'C:\Program Files\dotnet
 # .NET Dump Tool
 RUN dotnet tool install --global dotnet-dump;
 
+ENV PATH="C:\Users\ContainerAdministrator\.dotnet\tools;${PATH}"
+
 
 # Install Node.js
 RUN Invoke-WebRequest -Uri "https://nodejs.org/dist/v22.0.0/node-v22.0.0-win-x64.zip" -OutFile node.zip; `

eng/docker/Dockerfile.win2022

@@ -65,6 +65,8 @@ RUN & .\dotnet-install.ps1 -Version 9.0.310 -InstallDir 'C:\Program Files\dotnet
 # .NET Dump Tool
 RUN dotnet tool install --global dotnet-dump;
 
+ENV PATH="C:\Users\ContainerAdministrator\.dotnet\tools;${PATH}"
+
 
 # Epilogue
 # Create directories for mountpoints

src/PostSharp.Engineering.BuildTools/Docker/DotNetDumpComponent.cs

@@ -1,19 +1,25 @@
-// Copyright (c) SharpCrafters s.r.o. See the LICENSE.md file in the root directory of this repository root for details.
-
-using JetBrains.Annotations;
-using System.IO;
-
-namespace PostSharp.Engineering.BuildTools.Docker;
-
-[PublicAPI]
-public sealed class DotNetDumpComponent : ContainerComponent
-{
-    public override string Name => ".NET Dump Tool";
-
-    public override ContainerComponentKind Kind => ContainerComponentKind.DotNetDump;
-
-    public override void WriteDockerfile( TextWriter writer, ContainerOperatingSystem operatingSystem )
-    {
-        writer.WriteLine( "RUN dotnet tool install --global dotnet-dump;" );
-    }
+// Copyright (c) SharpCrafters s.r.o. See the LICENSE.md file in the root directory of this repository root for details.
+
+using JetBrains.Annotations;
+using System.IO;
+
+namespace PostSharp.Engineering.BuildTools.Docker;
+
+[PublicAPI]
+public sealed class DotNetDumpComponent : ContainerComponent
+{
+    public override string Name => ".NET Dump Tool";
+
+    public override ContainerComponentKind Kind => ContainerComponentKind.DotNetDump;
+
+    public override void WriteDockerfile( TextWriter writer, ContainerOperatingSystem operatingSystem )
+    {
+        writer.WriteLine( "RUN dotnet tool install --global dotnet-dump;" );
+
+        // The `dotnet tool install --global` shim is placed in %USERPROFILE%\.dotnet\tools, which is
+        // not on PATH by default. Add it so the tool (and any other globally installed .NET tools)
+        // is callable by name during container runs.
+        writer.WriteLine();
+        writer.WriteLine( """ENV PATH="C:\Users\ContainerAdministrator\.dotnet\tools;${PATH}" """.TrimEnd() );
+    }
 }