fix: avoid hiding remote lookup errors

lib/github.ts

@@ -215,8 +215,8 @@ export async function getRemoteFolder(
               return { name: f.name, size: pointer.size }
             }
           }
-        } catch {
-          // Fall through to use the original size
+        } catch (err) {
+          if (!isHttpError(err) || err.status !== 404) throw err
         }
 
         return { name: f.name, size: f.size }