fix: stabilize web registration and asset loading

scenes/ui/WebBootstrap.gd

@@ -0,0 +1,40 @@
+extends Control
+
+var _auth_manager: Node
+var _scene_manager: Node
+var _handled: bool = false
+
+func _ready() -> void:
+	_auth_manager = get_node_or_null("/root/AuthManager")
+	_scene_manager = get_node_or_null("/root/SceneManager")
+	if OS.get_name() != "Web":
+		_scene_manager.call_deferred("change_scene", "auth", false)
+		return
+	if _auth_manager == null:
+		return
+	if _auth_manager.has_signal("browser_bootstrap_received"):
+		_auth_manager.connect("browser_bootstrap_received", _on_browser_bootstrap_received)
+	var kind := str(_auth_manager.call("get_browser_bootstrap_kind")) if _auth_manager.has_method("get_browser_bootstrap_kind") else ""
+	if not kind.is_empty():
+		call_deferred("_on_browser_bootstrap_received", kind)
+
+func _on_browser_bootstrap_received(kind: String) -> void:
+	if _handled or _scene_manager == null:
+		return
+	_handled = true
+	if kind == "register":
+		_scene_manager.call("change_scene", "auth", false)
+		return
+	if _auth_manager.has_method("consume_browser_bootstrap_kind"):
+		_auth_manager.call("consume_browser_bootstrap_kind")
+	var appearanceManager := get_node_or_null("/root/AppearanceManager")
+	if appearanceManager != null and appearanceManager.has_method("apply_account_profile"):
+		appearanceManager.call("apply_account_profile", _auth_manager.call("get_current_profile"))
+	var chatManager := get_node_or_null("/root/ChatManager")
+	var token := str(_auth_manager.call("get_access_token"))
+	if chatManager != null and not token.is_empty():
+		chatManager.call("set_game_token", token)
+		chatManager.call("connect_to_chat_server")
+	if _auth_manager.has_method("fetch_profile"):
+		_auth_manager.call("fetch_profile")
+	_scene_manager.call("change_scene", "square", false)