feat(06-03): add raw groups, house middleware, and route:list

- GroupRaw plus sticky raw inheritance and registration-time house-envelope refusal via pact.HasHouseMiddleware
- Recover on raw routes writes a bare 500; non-raw keeps the house JSON body
- Router.Routes() and surf.RouteListCommand; generated main registers route:list

internal/build/build.go

@@ -111,6 +111,7 @@ func generateMain(m Manifest) ([]byte, error) {
 	b.WriteString("\t}\n")
 	b.WriteString("\tcommands := lagoon.RuntimeCommands(app, plugins)\n")
 	b.WriteString("\tcommands = append(commands, surf.ServeCommand(app, plugins))\n")
+	b.WriteString("\tcommands = append(commands, surf.RouteListCommand(app, plugins))\n")
 	b.WriteString("\tfor _, plugin := range plugins {\n")
 	b.WriteString("\t\tif hasCommands, ok := plugin.(pact.HasCommands); ok {\n")
 	b.WriteString("\t\t\tcommands = append(commands, hasCommands.Commands()...)\n")

internal/build/build_test.go

@@ -101,6 +101,9 @@ func TestGenerateStableQuotedImportsInManifestOrder(t *testing.T) {
 	if !bytes.Contains(mainSrc, []byte("surf.ServeCommand")) {
 		t.Fatalf("main does not register serve:\n%s", mainSrc)
 	}
+	if !bytes.Contains(mainSrc, []byte("surf.RouteListCommand")) {
+		t.Fatalf("main does not register route:list:\n%s", mainSrc)
+	}
 	if bytes.Contains(mainSrc, []byte("examples/hello")) {
 		t.Fatal("generated main hard-codes examples/hello")
 	}