Added "Casual Mode":
-In Casual Mode, there are no levels or money; players can place and decorate items without restriction.
-After clicking "Start" on the Main Menu, selecting an empty save file to start a new game, the game will prompt you which mode to enter.
-Game saves will now display the selected game mode.
Fixed the issue where "Air Conditioner" could not be properly placed on walls (Thanks to player feedback).
Adjustment:
-New games now default to having Sunlight/Moonlight lighting effects turned off, reducing visual fatigue (Lighting effects can be manually toggled ON/OFF in the game's "Advanced Settings" window within the "Weather Control Panel").