Added [ Manual Save ] feature.

● Added manual save functionality. The original auto-save feature has been moved to a dedicated save slot.

● Fixed a bug where the character would slide horizontally when holding a stone dagger.

● After loading a save, vehicles will now default to having the handbrake engaged.

● Attempted to adjust some UI scaling parameters, which may fix the issue where the gun crosshair does not display.

● Removed the code from the previous patch that fixed old save terrain, as it could incorrectly bury caves dug by players. As long as the terrain no longer disappears due to bugs, this is fine. Players who have already lost terrain can manually delete the "Human Host/Human Host_Data/Save/Save_01/DGV" folder to restore it.