Wrong BGM in OG BGM mode near start of game

Note: GIN is intending to check/fix this together with all the question arcs BGM script changes. I'm just recording this so we don't forget it later.

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At the start of tatari, `lsys28` plays.

In "normal BGM/Mangagamer BGM mode, we play: https://www.youtube.com/watch?v=XR2R3eIHbts&t=335s (we don't want to change this - I've just provided it for comparison). This is what Mangagamer provides for `lsys28`

When using the OG BGM, we currently play: https://www.youtube.com/watch?v=DatdHJym3Cg

However, in the original game, the song "LOOP131" plays: https://youtu.be/TT2R86jbw4k&t=602 / https://www.youtube.com/watch?v=bPdUNFWLnzU&t=1587s

A helpful reddit comment pointed me to this:

> It depends on which version you played. The original Japanese version used a short loop called 人食い族 ("Cannibal Tribe", filename "LOOP131.wav") by AIDIA, but the old Mangagamer translation and the post-2019 Steam version each replaced it with tracks of unknown origin, possibly custom-made for those versions.

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We should change either change the OG BGM's `lsys28` to LOOP131, or change the script to play LOOP131 just for this instance, depending on what is more correct.

Also see https://github.com/07th-mod/meakashi/issues/68 "Some BGM/sound effect versions are inconsistent with the question arcs", which I think has been resolved already. Once work starts on BGM stuff, we should make a indexing issue which links to all the other BGM issues.

@GIN5

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Here is the LOOP131.WAV from the original game that we want to include in the mod:
[LOOP131.zip](https://github.com/07th-mod/tatarigoroshi/files/6873221/LOOP131.zip)

El issue trata sobre una pista BGM específica (lsys28) que se reproduce incorrectamente en el modo OG BGM al inicio del juego. La pista correcta es LOOP131.wav, que se proporciona como un archivo zip adjunto. Primero, localiza los archivos de script o configuración de BGM que manejan el mapeo de lsys28 para el modo OG BGM. Compara con el modo BGM normal para entender la configuración actual. Luego, cambia el mapeo de lsys28 a LOOP131 o ajusta el script para que reproduzca LOOP131 en esta instancia, asegurando la coherencia con el juego original. Prueba el cambio ejecutando el juego desde el inicio de tatari para verificar que se reproduzca la pista correcta.

Escrito por el modelo de indexación a partir del texto del issue.