Resolve source operations from the Git checkout root

internal/candidate/check.go

@@ -8,7 +8,6 @@ import (
 	"fmt"
 	"io"
 	"os/exec"
-	"path/filepath"
 	"strings"
 
 	"gitea.maximumdirect.net/eric/ReleaseKit/internal/git"
@@ -79,7 +78,7 @@ func Capture(ctx context.Context, request Request) (Candidate, error) {
 		return captured, errors.New("product is required")
 	}
 
-	repositoryDir, err := filepath.Abs(request.RepositoryDir)
+	repositoryDir, err := git.RepositoryRoot(ctx, request.RepositoryDir)
 	if err != nil {
 		return captured, fmt.Errorf("resolve repository directory: %w", err)
 	}