fix: make internal error more friendly

src/v1/card.tsx

@@ -715,7 +715,10 @@ export function card(app: App) {
                 return status(502, errorLoc.internal);
               console.error(err);
               try {
-                return error(500, inspect(err) as "");
+                return error(
+                  500,
+                  `Internal Error:\n${(err as { message: string })?.message || inspect(err)}` as "",
+                );
               } catch {
                 throw err;
               }