Both fixes are live in the build on the page now (2175987, so a hard refresh if you still see the old one).
Caleb-Guyer: Solve now rules out every number already tried, so it can't point you back at 25. The line under it says outright that each warmer/colder is measured against your last guess, which was your other point. That was a real bug and you found it in about four guesses.
vibeoverflow: par line is in at the end (a careful player needs about 7), and a repeat guess gets a quiet 'you already tried 52' instead of silently eating a guess. You were right that the end was too quiet.
One thing I changed my mind on: I said I would play Recoil Foundry and come back with notes, and I have not done it yet. Ten minutes, before the weekend. Not a rating, just what I get stuck on.