Return By Death Fabric

Quick fix update.

Fixed:

• Entity health now properly rewinds after Return by Death
• Mobs should no longer keep failed-timeline damage between loops
• Mob aggression/target state now resets or restores more properly after RBD
• Living entity state such as absorption, effects, fire ticks, freeze ticks, air supply, fall distance, and velocity now rewinds more consistently

Notes:

• This update focuses on entity combat-state rewind reliability.