feat: implement Candy Cannon mechanics, CI/CD pipelines, and version 2.3.7 updates

scripts/controllers/candy_cannon_controller.gd

@@ -0,0 +1,47 @@
+extends Node3D
+class_name CandyCannonController
+
+@export var is_static_turret: bool = true
+
+func _ready() -> void:
+	pass
+
+@rpc("authority", "call_local", "reliable")
+func play_animation_rpc(anim_name: String) -> void:
+	# Stub for future model animations
+	pass
+
+@rpc("authority", "call_local", "reliable")
+func spawn_projectile_rpc(target_world_pos: Vector3, duration: float) -> void:
+	var projectile = MeshInstance3D.new()
+	var sphere = BoxMesh.new()
+	sphere.size = Vector3(0.4, 0.4, 0.4)
+	projectile.mesh = sphere
+	var mat = StandardMaterial3D.new()
+	mat.albedo_color = Color(1.0, 0.4, 0.8) # Candy pink for Gauntlet
+	projectile.material_override = mat
+	
+	get_tree().get_root().add_child(projectile)
+	
+	# Start projectile slightly above the cannon center
+	projectile.global_position = global_position + Vector3(0, 2.0, 0)
+	
+	var tween = create_tween()
+	if not tween:
+		projectile.queue_free()
+		return
+		
+	tween.set_parallel(true)
+	tween.tween_property(projectile, "global_position:x", target_world_pos.x, duration).set_trans(Tween.TRANS_LINEAR)
+	tween.tween_property(projectile, "global_position:z", target_world_pos.z, duration).set_trans(Tween.TRANS_LINEAR)
+	
+	var mid_y = max(global_position.y, target_world_pos.y) + 4.0
+	var tween_y = create_tween()
+	tween_y.tween_property(projectile, "global_position:y", mid_y, duration / 2.0).set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_OUT)
+	tween_y.tween_property(projectile, "global_position:y", target_world_pos.y, duration / 2.0).set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_IN).set_delay(duration / 2.0)
+	
+	tween.chain().tween_callback(projectile.queue_free)
+
+func can_rpc() -> bool:
+	if not multiplayer.has_multiplayer_peer(): return false
+	return multiplayer.multiplayer_peer.get_connection_status() == MultiplayerPeer.CONNECTION_CONNECTED