Remember the folder, prohibit deletion

[LordNEVR]

Hello.
I liked your program.
I would like to add a couple of functions. If possible.

1. When backing up, restoring the database, and exporting and importing rss, I would like the last selected path (folder) to be remembered.
   To avoid having to select a folder every time

2. Be able to mark articles, feeds, so that they cannot be deleted.
   And only by removing the label (for example, a star), it was possible to delete it.
   For example, how is this implemented in QuiteRSS
   https://quiterss.org/en/article/1563
   https://disk.yandex.ru/i/FUZpsg4Lq3vS-w

With respect.