hotfix: move save data to DB (#2)

* start reading save data from DB

* finish migration code

* remove leftover dir creation

* fix import cycle

* remove more dir creation

* update gitignore

* fix pk

* better table creation

* use REPLACE INTO

* fix typo

.gitignore

@@ -3,3 +3,9 @@
 rogueserver*
 userdata/*
 secret.key
+
+# Jetbrains IDEs
+/.idea/
+*.iml
+*.ipr
+*.iws