Fix pulp acid-filled corpses

[SurFlurer]

Summary

Bugfixes "Fix pulp acid-filled corpses"

Purpose of change

Fix #76236

Describe the solution

It was an oversight when migrating ACT_PULP. pulp_acid should be the indicator of whether the character has made their mind to pulp acid-filled corpses. If pulp_acid is true, the character will always pulp acid-filled corpses.

In the original implementation, only auto-pulping will use this value ( in fact, its equivalent ) to actually check acid immunity when dealing with acid-filled corpses. I added this ability to NPCs to avoid them being burned by pulping acid zombies.

Describe alternatives you've considered

Testing

1. Wear regular outfit, pulp an acid corpse: the player gets a prompt as comfirmation, then the corpse gets pulped.
2. Wear hub01 env suit, pulp an acid corpse: no prompt, and the corpse gets pulped.
3. NPC with regular outfit, around a non-acid corpse: the corpse gets pulped.
4. NPC with regular outfit, around an acid corpse: the corpse doesn't get pulped.
5. NPC with hub01 env suit, around an acid corpse: the corpse gets pulped.
6. Auto-pulp on, wear regular outfit, walk around an acid corpse: the corpse doesn't get pulped.
7. Auto-pulp on, wear hub01 env suit, walk around an acid corpse: the corpse gets pulped.

Additional context