WIP checkpoint: Main menu: hide the login/register form once authenticated, keep only the welcome message

scripts/main_menu.gd

@@ -8,6 +8,7 @@ extends Control
 ##
 ## On successful auth the token is stored via ApiClient, AuthButtonsRow hides,
 ## the welcome label shows the username, and the Play button becomes enabled.
+## The auth form fields are hidden, leaving only the welcome message visible.
 
 
 # ── UI references ────────────────────────────────────────────────────────────
@@ -173,12 +174,17 @@ func _on_auth_complete(result: Dictionary) -> void:
 	_is_authenticating = false
 
 	if result.ok:
-		# Success — show welcome, enable Play, hide the now-redundant
-		# Login/Register entry points (the auth panel itself stays open,
-		# showing the welcome message in place of the form).
+		# Success — hide the auth form fields, show only the welcome label.
+		_username_edit.visible = false
+		_password_edit.visible = false
+		_email_edit.visible = false
+		_dob_edit.visible = false
+		_mode_toggle.visible = false
+		_auth_button.visible = false
+		_auth_mode_label.visible = false
+		_status_label.visible = false
 		_welcome_label.text = "Welcome, %s!" % _username_edit.text.strip_edges()
 		_welcome_label.visible = true
-		_status_label.visible = false
 		_play_button.disabled = false
 		_auth_buttons_row.visible = false
 		print("Auth successful. Token stored.")