test: add foreign endpoint parity suite

Author: mkn8rn

.github/rulesets/required-ci-domains.json

@@ -89,6 +89,7 @@
           { "context": "Correctness / Module API Host Startup" },
           { "context": "Correctness / Module Bundled Outputs" },
           { "context": "Correctness / Module External Lifecycle" },
+          { "context": "Correctness / Module Foreign Runtime" },
           { "context": "Correctness / Module Harness Integration" },
           { "context": "Correctness / Module Harness Cost And Matrix" },
           { "context": "Correctness / Module Contracts Architecture" },

.github/workflows/ci.yml

@@ -174,6 +174,8 @@ jobs:
             filter: 'FullyQualifiedName~SharpClaw.Tests.Modules.BundledModuleOutputTests'
           - domain: Module External Lifecycle
             filter: 'FullyQualifiedName~SharpClaw.Tests.Modules.SyntheticExternalModuleLifecycleTests'
+          - domain: Module Foreign Runtime
+            filter: 'FullyQualifiedName~SharpClaw.Tests.Modules.ForeignModule|FullyQualifiedName~SharpClaw.Tests.Modules.JavaScriptModuleSdkTests|FullyQualifiedName~SharpClaw.Tests.Modules.PythonModuleSdkTests'
           - domain: Module Harness Integration
             filter: 'FullyQualifiedName~ModuleRegistersDynamicProvidersToolsHeaderTagsAndCostFeed|FullyQualifiedName~ProviderCaptureRedactsSecretsButKeepsAssertablePromptShape'
           - domain: Module Harness Cost And Matrix

SharpClaw.Tests.ForeignSidecar/Program.cs

@@ -113,6 +113,18 @@ async Task HandleAsync(TcpClient client)
                             routePattern = "/modules/sample/echo",
                             responseMode = "json",
                         },
+                        new
+                        {
+                            method = "GET",
+                            routePattern = "/modules/sample/static/hello.txt",
+                            responseMode = "static",
+                        },
+                        new
+                        {
+                            method = "GET",
+                            routePattern = "/modules/sample/stream",
+                            responseMode = "stream",
+                        },
                     },
                     tools = new[]
                     {
@@ -255,6 +267,23 @@ await WriteNdjsonAsync(
                 });
                 break;
 
+            case "/modules/sample/static/hello.txt":
+                await WriteTextAsync(
+                    stream,
+                    200,
+                    "OK",
+                    "static-parity-asset",
+                    "text/plain");
+                break;
+
+            case "/modules/sample/stream":
+                await WriteNdjsonAsync(
+                    stream,
+                    new { delta = "first:" },
+                    new { delta = "second" },
+                    new { isFinal = true });
+                break;
+
             default:
                 await WriteTextAsync(stream, 404, "Not Found", "not found", "text/plain");
                 break;