feat: add safe tensor model type to SBOM output (#4844)

---------
Signed-off-by: Christopher Phillips <32073428+spiffcs@users.noreply.github.com>
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
Co-authored-by: Alex Goodman <wagoodman@users.noreply.github.com>

syft/pkg/cataloger/ai/naming.go

@@ -0,0 +1,22 @@
+package ai
+
+import "path"
+
+// pickSafeTensorsName implements the documented naming precedence chain:
+func pickSafeTensorsName(nameOrPath, fallbackName string) string {
+	if nameOrPath != "" {
+		return path.Base(nameOrPath)
+	}
+	return fallbackName
+}
+
+// safeTensorsDirName returns the directory-scan naming fallback: the base name
+// of the group's parent directory (the group key is already that directory).
+func safeTensorsDirName(directory string) string {
+	base := path.Base(directory)
+	switch base {
+	case "/", ".", "":
+		return ""
+	}
+	return base
+}