Auto-boss now disables itself when a boss fight is lost (instead of
silently looping), and turns off with an error message when the API
call itself fails (e.g. party has no adventurers). Auto-quest disables
itself whenever a quest fails the random chance check. In both cases
the player sees a clear status/error line in the boss panel rather than
a silent toggle, and can re-enable when ready.
Also initialises autoBoss/autoQuest to false in initialGameState so
these fields survive save/load cycles from the very first session.
Closes#40
hikari
