Safe int conversion for query parameters

[max-ostapenko]

• safe int conversion for numerical query params

  Lots of 500 in logs: https://cloudlogging.app.goo.gl/tUXGV92PUkmsegiPA

  And one more argument to switch off security scanner.

• reverted some false linting pushed to main by mistake.

[tunetheweb]

Not totally convinced that ignoring bad params is actually a good thing to do. However I also don't think sending a 500 error is a good thing to do either (400 is probably more accurate).

Anyway, don't feel strongly about it, so if if it makes our life easier then happy to go with this.

[max-ostapenko]

Yeah, I'd like to do 400, but 99.9% of our requests are coming from security scanner.
So will mute them for now.