Make use of play.google.com/sdks

It would be nice to make use of https://play.google.com/sdks to verify the detection rules, and maybe periodically check that none are missing.

Start by reviewing the existing detection rules and any current verification or update workflow, then compare them with https://play.google.com/sdks. Define how missing rules should be identified and how periodic checking would run; done means the rules can be verified against that source and missing entries are reported or handled consistently.

Written by the indexing model from the issue text.