pv-addon-nickname

Fix: nicknames no longer render as the literal placeholder text (e.g. %styled-nicknames:display_name%) on Fabric / PB4.

The server PB4 integration now builds its parse input with PB4's LiteralNode instead of reflecting Text.literal(String). Under intermediary mappings Text.literal and Text.translatable are indistinguishable static String->Text methods, so the old shape-based lookup could non-deterministically pick translatable and turn the placeholder into an unresolved translation key. LiteralNode + Placeholders.parseText(TextNode, PlaceholderContext) is deterministic and mapping / loader / version agnostic.