feat: update 2.1.9

scripts/ui/login_screen.gd

@@ -10,6 +10,7 @@ extends Control
 @onready var google_button := %GoogleButton as Button
 @onready var apple_button := %AppleButton as Button
 @onready var facebook_button := %FacebookButton as Button
+@onready var steam_button := %SteamButton as Button
 @onready var status_label := %StatusLabel as Label
 @onready var loading_spinner := %LoadingSpinner as TextureProgressBar
 
@@ -65,6 +66,7 @@ func _connect_signals() -> void:
 	google_button.pressed.connect(_on_google_pressed)
 	apple_button.pressed.connect(_on_apple_pressed)
 	facebook_button.pressed.connect(_on_facebook_pressed)
+	steam_button.pressed.connect(_on_steam_pressed)
 	
 	# Registration buttons
 	register_button.pressed.connect(_on_register_pressed)
@@ -99,15 +101,18 @@ func _setup_ui() -> void:
 	_configure_social_buttons()
 
 func _configure_social_buttons() -> void:
-	# Google - available on all platforms
-	google_button.visible = true
+	# Google - hidden until API is configured
+	google_button.visible = false
 	
 	# Apple - iOS and macOS only (or hide if not configured)
 	var os := OS.get_name()
 	apple_button.visible = os in ["iOS", "macOS"]
 	
-	# Facebook - available on all platforms
-	facebook_button.visible = true
+	# Facebook - hidden until API is configured
+	facebook_button.visible = false
+	
+	# Steam - show when GodotSteam GDExtension is available
+	steam_button.visible = ClassDB.class_exists("Steam")
 
 # =============================================================================
 # Panel Switching
@@ -190,6 +195,13 @@ func _on_facebook_pressed() -> void:
 	# When you have the access token from Facebook SDK:
 	# AuthManager.login_with_facebook(access_token)
 
+func _on_steam_pressed() -> void:
+	if is_loading:
+		return
+	
+	# Steam login uses Steamworks auth ticket
+	AuthManager.login_with_steam()
+
 
 
 func _on_server_option_selected(index: int) -> void:
@@ -421,6 +433,7 @@ func _set_inputs_enabled(enabled: bool) -> void:
 	google_button.disabled = not enabled
 	apple_button.disabled = not enabled
 	facebook_button.disabled = not enabled
+	steam_button.disabled = not enabled
 	email_input.editable = enabled
 	password_input.editable = enabled
 	reg_email_input.editable = enabled