General Progress:
1. Feat: Added expense behaviour,
2. Feat: Update 3D assets
3. Exploring Godot environment (blooming, etc)
4. Exploring Godot animation

User can now start having expense deducted from their balance.

Tried to update the 3D diorama with the one I had in mind, but turns out weirder than its supposed to especially the shadow. Suspect some issue either with 3D topography, shadows or lighting.