fix: cross-workspace nameless exec dup issue

when the same nameless exec is used across workspaces, it sometimes
may not be the exec returned. this fixes the issue by including the
ws in the returned id

Author: jahvon

types/executable/executable.go

@@ -518,15 +518,14 @@ func NewExecutableID(workspace, namespace, name string) string {
 	switch {
 	case ws == "":
 		return "" // TODO: return error or log warning
+	case ns == "" && name == "":
+		return ws + "/" // nameless executable
 	case ns != "" && name == "":
 		return fmt.Sprintf("%s:", ns)
 	case ns != "":
 		return fmt.Sprintf("%s/%s:%s", ws, ns, name)
-	case name != "":
+	default:
 		return fmt.Sprintf("%s/%s", ws, name)
-	default: // ws != "" && ns == "" && name == ""
-		// for now, exclude the workspace from the string (until we can indicate that it's root / not named in the tui)
-		return ""
 	}
 }