Fix Small Lighthouse Tower Floor

[WhaleYogurt]

Fix Small Lighthouse Tower Floor

Bugfixes: Lighthouse tower properly marked as inside space**

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Summary

Bugfixes "Lighthouse tower properly marked as inside space"

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Purpose of change

Fixes #78553.

Currently, the small lighthouse tower is marked as outside despite being enclosed with:

• Stone masonry walls (t_stone_masonry_floor),
• Glass walls at the ladder's top, and
• A roof.

This causes unintended behavior, such as rain falling indoors. This PR ensures the lighthouse tower is correctly marked as an inside space.

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Describe the solution

• Added the t_stone_masonry_floor_balcony tile which is considered an inside floor.
  • This resolves the issue while preserving the aesthetic and structural integrity of the lighthouse.

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Describe alternatives you've considered

1. Manual tile replacement:
   Replace the t_stone_masonry_floor tiles specifically for the lighthouse with another floor tile (e.g., t_wood_floor or t_tile) to mark the space as inside. Please consider doing this @harakka so that sky island isn't affects

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1. Impact testing:
   • Checked for unintended side effects on other locations using t_stone_masonry_floor.

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Notes

• If modifying t_stone_masonry_floor globally is problematic, I will adjust the tiles specific to the lighthouse area.
• Maintainers have permission to edit this PR as needed.

[WhaleYogurt]

Just mostly reused the old PR text for times sack but in short I added a new tile which is indoors so that the old one doesn't conflict with sky island. So @harakka is now able to change the structure so it uses both

[harakka]

This PR doesn't currently fix anything since the terrain you added isn't used anywhere. You can do it trivially yourself, add it to the palette in data/json/mapgen/lake_buildings/lighthouse_small.json and edit the lighthouse_small_z4 map further down in the same file to use it.

[WhaleYogurt]

Thanks for telling me that. I know literally nothing about map-making in this game but I guess there's no time like the present. Any other resources I should know about for future reference?

[WhaleYogurt]

Does this work @harakka?

[Night-Pryanik]

Yes, this will do.