Replace faction template comparison with race-based same-faction check
since faction template is dynamically overwritten in cross-faction groups.
Uses bitmask lookup for Alliance/Horde races (including High Elf/Goblin).
Replace GO flag checks with CallSpellCastHandler (0x5f8800) — the same
virtual dispatch the game's cursor system uses to determine if a GO is
interactable. This correctly handles enemy-summoned mailboxes and
brainwashers that have no distinguishing descriptor flags.
MarcelineVQ
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