fix(router): check persisted ops hashes to be well-formed#2078

ysmolski merged 4 commits intomainwundergraph/cosmo:mainfrom

yury/eng-7655-wun-q225-07-arbitrary-json-file-access-through-persistentwundergraph/cosmo:yury/eng-7655-wun-q225-07-arbitrary-json-file-access-through-persistentCopy head branch name to clipboard