feat: implement procedural humanoid animations, modular weapon system, and dummy entity base classes

characters/humanoid_model.gd

@@ -36,6 +36,8 @@ var movement_speed: float = 0.0
 var _anim_time: float = 0.0
 
 func _ready() -> void:
+	rotation_degrees.y = 180
+	
 	var mat := StandardMaterial3D.new()
 	mat.albedo_color = color
 	mat.roughness = 0.8
@@ -197,7 +199,6 @@ func set_weapon(script_path: String) -> void:
 			_set_shadows_recursive(w)
 			
 		# Force position after the weapon's _build_model() sets it for 1st person
-		# root_pivot is rotated 180 deg around Y, so local +Z is FORWARD and local -X is RIGHT
 		w.position = Vector3(-0.15, 1.0, 0.4)
 		w.rotation_degrees = Vector3(0, 180, 0)
 	)