Refactoring IsValidHealTarget

PB: Removed pets from the logic of healer bot.

PB: A bot should not consider a dead target for healing.

PB: Fix stay command for mdd.

Fix db log.

FIx HC exp.

fix(IO/Network): Dangling context switch causing socket not to fully close.

Fix Auction list display

Rework target healing.

Refactoring CombatBotBaseAI::SelectHealTarget

Refactoring SelectPeriodicHealTarget

Refactoring FindAndPreHealTarget

Fix AreOthersOnSameTarget, check group if null.

Fix SelectPartyAttackTarget, check group if null.

Add more check group can null.

Add more group check

Fix build

fix(build): Fix non-pre-compiled-headers build

Move world networking code to subfolder

Fix auction owerflow exp time. (thx Salmon)