fix: remove dead GenerateDocumentationFile/NoWarn from .props, fix MA0026

GenerateDocumentationFile didn't help OpenAPI — the XmlCommentGenerator
reads syntax trees directly, and XML docs don't transfer to generated
wrapper delegates. Removed the setting and its NoWarn suppression.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ANcpLua

samples/ErrorOrX.Sample/TodoApi.cs

@@ -1,7 +1,7 @@
 namespace ErrorOrX.Sample;
 
 /// <summary>
-///     Todo API demonstrating ErrorOr endpoints with automatic error inference.
+///     Demonstrates ErrorOr endpoints with automatic error inference.
 /// </summary>
 /// <remarks>
 ///     <para>

src/ErrorOrX.Generators/build/ErrorOrX.Generators.props

@@ -1,27 +1,10 @@
 <Project>
     <PropertyGroup>
-        <!--
-            IMPORTANT: ErrorOrGenerateJsonContext is disabled by default.
-
-            The generated ErrorOrJsonContext CANNOT be used for Native AOT because Roslyn
-            source generators cannot see output from other generators. The System.Text.Json
-            source generator will not process our generated JsonSerializerContext.
-
-            For AOT compatibility, you MUST create your own JsonSerializerContext:
-
-            [JsonSerializable(typeof(YourType))]
-            internal partial class AppJsonSerializerContext : JsonSerializerContext { }
-
-            And register it:
-            builder.Services.AddErrorOrEndpoints(o => o.UseJsonContext<AppJsonSerializerContext>());
-
-            See: https://learn.microsoft.com/aspnet/core/fundamentals/aot/request-delegate-generator/rdg
-        -->
+        <!-- Disabled by default: Roslyn generators cannot see other generators' output,
+             so the STJ source generator won't process our generated JsonSerializerContext.
+             For AOT, create your own JsonSerializerContext and register it via
+             builder.Services.AddErrorOrEndpoints(o => o.UseJsonContext<YourContext>()); -->
         <ErrorOrGenerateJsonContext Condition="'$(ErrorOrGenerateJsonContext)' == ''">false</ErrorOrGenerateJsonContext>
-        <!-- Enable XML documentation for OpenAPI parameter descriptions -->
-        <GenerateDocumentationFile Condition="'$(GenerateDocumentationFile)' == ''">true</GenerateDocumentationFile>
-        <!-- Suppress XML doc warnings (CS1591: missing XML comment, CS1573: missing param tag) -->
-        <NoWarn>$(NoWarn);CS1591;CS1573</NoWarn>
     </PropertyGroup>
 
     <ItemGroup>