To try and be concise, I'll just reply to each number individually :P
1) This was a bug that is fixed in 0.2. If you save/load it will return.
2) Hmm, there's definitely a few things wrong with that. You shouldn't be able to get both debuffs at the same time.
I designed it (or at least, intended to) so that it would scale with your strength, (with a base of 3, max of 6 iirc) whereas it should scale +1 attempt for every 5 or 6 str levels. So +15 STR would still be at the min of 3, and at 20 it should move to 4 and so on.
The tired debuff should apply on your second-to-last attempt of the day, and exhausted should apply when you've maxxed out your attempts.
From the sounds of it, it's not working correctly. I'll take a look into the code and apply any necessary fixes to 0.2. Thanks for reporting that :)
3) For now, dev/patch notes are available at the main menu and in-game (Settings > Patch Notes -- it's at the bottom).
0.3 will bring an updated Achievement tracker that tracks every randomly rolled event, sorted by update and generalized location.
I also really like the idea of the quest number tracker, but eventually (in a far-off, distant build), there will be quests, and even entire questlines, that will only be accessible via certain actions and decisions. I'll need to assess the best way to resolve that before I think about adding it.
4) Could you give me some insight on what you mean by mouse-over functionality? Like tooltips? I usually play VNs on mobile and have structured the game around that experience. If there's something important that I'm missing, I'd love to add it!
Also, if you want a more timely response (my bad for the wait!), consider joining our Discord if you have it. It's easier for me to keep track when I have notifications :P