Fix menu rendering compilation issues

[themuffinator]

Summary

• remove incompatible ranges pipelines in the menu renderer and rebuild visible entry selection iteratively
• declare the game import interface before inline helpers to fix compilation
• adjust berserk melee attack setup to use a non-constexpr aim vector with documentation

Testing

• not run (not requested)

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Declare local_game_import_t before using in gi extern

extern local_game_import_t gi; is now placed before local_game_import_t is declared anywhere in the header, so any translation unit including this file fails to compile with an unknown-type error. The extern needs to come after the struct definition or be preceded by a forward declaration to keep the header buildable.

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