refactor: update Blazor testing guidelines and improve regex for hostname parsing in Caddy configuration

.cursor/rules/blazor-development.mdc

@@ -32,7 +32,7 @@ alwaysApply: true
 
 ## Testing and Debugging
 - All unit testing and integration testing should be done in Cursor ide
-- Test Blazor components and services using xUnit
+- Test services, unit and integration, using xUnit
 - Use Moq for mocking dependencies during tests
 - Debug Blazor UI issues using browser developer tools and Cursor ide's debugging tools for backend and server-side issues
 - For performance profiling and optimization, rely on Cursor ide's diagnostics tools

CaddyManager.Services/Caddy/CaddyConfigurationParsingService.cs

@@ -8,9 +8,11 @@ public partial class CaddyConfigurationParsingService: ICaddyConfigurationParsin
 {
     /// <summary>
     /// Regex to help parse hostnames from a Caddyfile.
+    /// This regex only matches hostname declarations at the beginning of lines (column 1 after optional whitespace)
+    /// and excludes nested directives like "reverse_proxy target {".
     /// </summary>
     /// <returns></returns>
-    [GeneratedRegex(@"(?m)^\s*([^\{\r\n]+?)\s*\{", RegexOptions.Multiline)]
+    [GeneratedRegex(@"(?m)^([^\s\{\r\n][^\{\r\n]*?)\s*\{", RegexOptions.Multiline)]
     private static partial Regex HostnamesRegex();
     
     /// <summary>
@@ -67,8 +69,8 @@ public partial class CaddyConfigurationParsingService: ICaddyConfigurationParsin
 
         foreach (Match match in matches)
         {
-            var parts = match.Value.TrimEnd('}').Trim().Split(' ');
+            // Use the captured group which contains the target (e.g., pikachu:3011)
-            var targetPart = parts.LastOrDefault(string.Empty);
+            var targetPart = match.Groups[1].Value.Trim();
             if (string.IsNullOrEmpty(targetPart)) continue;
 
             var targetComponents = targetPart.Split(':');

CaddyManager.Tests/Services/Caddy/CaddyConfigurationParsingServiceTests.cs

@@ -74,11 +74,9 @@ public class CaddyConfigurationParsingServiceTests
 
         // Assert
         result.Should().NotBeNull();
-        result.Should().HaveCount(4); // Updated to reflect correct parsing of labels before blocks
+        result.Should().HaveCount(2); // Should only return outermost hostname declarations
         result.Should().Contain("api.example.com");
         result.Should().Contain("app.example.com");
-        result.Should().Contain("route /v1/*");
-        result.Should().Contain("route /v2/*");
     }
 
     /// <summary>
@@ -522,12 +520,9 @@ app.example.com {
 
         // Assert
         result.Should().NotBeNull();
-        result.Should().HaveCount(5);
+        result.Should().HaveCount(2); // Should only return outermost hostname declarations
         result.Should().Contain("api.example.com");
         result.Should().Contain("app.example.com");
-        result.Should().Contain("header");
-        result.Should().Contain("@cors");
-        result.Should().Contain("tls");
     }
 
     /// <summary>