⚙️ Fix broken Docker build by removing non-existent AspireHost project reference

deployment/docker/Dockerfile

@@ -14,7 +14,6 @@ ENV NUGET_XMLDOC_MODE=skip
 COPY ["NLWebNet.sln", "./"]
 COPY ["src/NLWebNet/NLWebNet.csproj", "src/NLWebNet/"]
 COPY ["samples/Demo/NLWebNet.Demo.csproj", "samples/Demo/"]
-COPY ["samples/AspireHost/NLWebNet.AspireHost.csproj", "samples/AspireHost/"]
 COPY ["tests/NLWebNet.Tests/NLWebNet.Tests.csproj", "tests/NLWebNet.Tests/"]
 
 # Restore dependencies

test-docker-fix.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Test script to verify Docker build functionality for NLWebNet Demo
+# This script verifies that the Docker build can successfully copy all project files
+
+set -e
+
+echo "Testing Docker build file copying stage..."
+
+# Build only up to the file copying stage to verify all referenced files exist
+docker build -f deployment/docker/Dockerfile --target build --no-cache -t nlwebnet-build-test . 2>&1 | head -20
+
+echo ""
+echo "Docker build file copying stage test completed successfully!"
+echo "All project files referenced in the Dockerfile exist and can be copied."

tests/NLWebNet.Tests/Docker/DockerfileTests.cs

@@ -0,0 +1,71 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System.IO;
+using System.Text.RegularExpressions;
+
+namespace NLWebNet.Tests.Docker;
+
+[TestClass]
+public class DockerfileTests
+{
+    [TestMethod]
+    public void Dockerfile_AllReferencedProjectFilesExist()
+    {
+        // Arrange
+        var rootPath = GetRepositoryRoot();
+        var dockerfilePath = Path.Combine(rootPath, "deployment/docker/Dockerfile");
+
+        Assert.IsTrue(File.Exists(dockerfilePath), $"Dockerfile not found at {dockerfilePath}");
+
+        var dockerfileContent = File.ReadAllText(dockerfilePath);
+
+        // Extract COPY commands that reference .csproj files
+        var copyPattern = @"COPY \[""([^""]+\.csproj)"", ""[^""]+/""\]";
+        var matches = Regex.Matches(dockerfileContent, copyPattern);
+
+        // Act & Assert
+        foreach (Match match in matches)
+        {
+            var projectPath = match.Groups[1].Value;
+            var fullPath = Path.Combine(rootPath, projectPath);
+
+            Assert.IsTrue(File.Exists(fullPath),
+                $"Project file referenced in Dockerfile does not exist: {projectPath} (Full path: {fullPath})");
+        }
+
+        // Verify we found at least the expected project files
+        Assert.IsTrue(matches.Count >= 3,
+            "Expected to find at least 3 project file references in Dockerfile (NLWebNet, Demo, Tests)");
+    }
+
+    [TestMethod]
+    public void Dockerfile_DoesNotReferenceAspireHostProject()
+    {
+        // Arrange
+        var rootPath = GetRepositoryRoot();
+        var dockerfilePath = Path.Combine(rootPath, "deployment/docker/Dockerfile");
+
+        Assert.IsTrue(File.Exists(dockerfilePath), $"Dockerfile not found at {dockerfilePath}");
+
+        var dockerfileContent = File.ReadAllText(dockerfilePath);
+
+        // Act & Assert
+        Assert.IsFalse(dockerfileContent.Contains("AspireHost"),
+            "Dockerfile should not contain references to AspireHost project");
+        Assert.IsFalse(dockerfileContent.Contains("NLWebNet.AspireHost.csproj"),
+            "Dockerfile should not contain references to NLWebNet.AspireHost.csproj");
+    }
+
+    private static string GetRepositoryRoot()
+    {
+        var currentDirectory = Directory.GetCurrentDirectory();
+        var directory = new DirectoryInfo(currentDirectory);
+
+        while (directory != null && !File.Exists(Path.Combine(directory.FullName, "NLWebNet.sln")))
+        {
+            directory = directory.Parent;
+        }
+
+        Assert.IsNotNull(directory, "Could not find repository root (NLWebNet.sln not found)");
+        return directory.FullName;
+    }
+}