style: apply gdformat formatting across the entire project

Auto-format all GDScript files using gdformat from gdtoolkit.
This is a baseline formatting pass to ensure consistent style:

- Normalizes indentation and spacing
- Wraps long lines to 100 characters
- Removes trailing whitespace
- Standardizes blank lines between functions

68 files reformatted, 8 files left unchanged (3rd-party addon files
with parse errors excluded).

player/camera_rig.gd

@@ -61,7 +61,9 @@ func _physics_process(delta: float) -> void:
 		desired_focus_position += cam_right * (diff_right - sign(diff_right) * deadzone_right)
 
 	if abs(diff_forward) > deadzone_forward:
-		desired_focus_position += cam_forward * (diff_forward - sign(diff_forward) * deadzone_forward)
+		desired_focus_position += (
+			cam_forward * (diff_forward - sign(diff_forward) * deadzone_forward)
+		)
 
 	focus_position = focus_position.lerp(desired_focus_position, focus_t)