Enable race testing in validation

check.go

@@ -6,6 +6,7 @@ import (
 
 	internalbuild "gitea.maximumdirect.net/eric/ReleaseKit/internal/build"
 	"gitea.maximumdirect.net/eric/ReleaseKit/internal/candidate"
+	"gitea.maximumdirect.net/eric/ReleaseKit/internal/validation"
 )
 
 // ErrInvalidVersion reports a version that is not stable vMAJOR.MINOR.PATCH.
@@ -27,18 +28,34 @@ type ReleaseRequest struct {
 	Product       string
 	Version       string
 	Remote        string
-	// AdditionalChecks optionally runs product checks after the standard suite.
+	// Validation selects optional checks run against the captured candidate.
+	Validation ValidationSpec
+	// AdditionalChecks optionally runs product checks after shared validation.
 	AdditionalChecks func(context.Context, Candidate) error
 	Build            *BuildSpec // optional selected-target build after validation.
 	Output           io.Writer
 }
 
+// ValidationSpec selects optional shared validation checks. Its zero value
+// preserves the current validation behavior.
+type ValidationSpec struct {
+	Go GoValidationSpec
+}
+
+// GoValidationSpec selects checks performed by the Go toolchain.
+type GoValidationSpec struct {
+	// Race runs the one standard Go test suite with the race detector enabled.
+	Race bool
+}
+
 // Check validates one local, committed release candidate. It requires a clean
 // worktree and index on main, a committed note matching Product and Version,
 // and an unused local tag. It always runs the offline Go test suite with the
 // available compatible local Go toolchain and Go host target, then calls
-// AdditionalChecks when supplied. If Build selects targets, Check builds them
-// after validation in temporary storage outside the worktree, then rechecks
+// AdditionalChecks when supplied. Validation.Go.Race runs that one suite with
+// the race detector; the zero value preserves the ordinary native suite. If
+// Build selects targets, Check builds them after validation in temporary
+// storage outside the worktree, then rechecks
 // branch, HEAD, worktree, index, and local tag state. Success establishes local
 // candidate evidence only; it does not establish remote availability.
 func Check(ctx context.Context, request ReleaseRequest) (Candidate, error) {
@@ -58,6 +75,7 @@ func candidateRequest(request ReleaseRequest) candidate.Request {
 		RepositoryDir:    request.RepositoryDir,
 		Product:          request.Product,
 		Version:          request.Version,
+		Validation:       validation.Settings{Race: request.Validation.Go.Race},
 		AdditionalChecks: candidateChecks(request.AdditionalChecks),
 		AfterValidate:    internalbuild.CandidateCallback(internalBuildSpec(request.Build), request.Output),
 		Output:           request.Output,