match-3 grid generation

make game scene modular
global debug mode

scenes/game/gameplays/clickomania_gameplay.gd

@@ -0,0 +1,10 @@
+extends Node2D
+
+signal score_changed(points: int)
+
+func _ready():
+	print("Clickomania gameplay loaded")
+	# Example: Add some score after a few seconds to test the system
+	await get_tree().create_timer(2.0).timeout
+	score_changed.emit(100)
+	print("Clickomania awarded 100 points")