Add planet scanner and octopus biome

tests/_scanner_menu_preview.gd

@@ -0,0 +1,22 @@
+extends Node2D
+
+# Phone-sized visual fixture for the scene-owned scanner panel.
+#   bash tests/screenshot.sh res://tests/_scanner_menu_preview.tscn /tmp/scanner.png 20 720x1280
+
+
+func _ready() -> void:
+	GameState.reset_new_game()
+	GameState.intro_active = false
+	GameState.reset_quests(false)
+	GameState.unlocked.append("deep_space_scanning")
+	GameState.add_building(GameState.BUILDING_PLANET_SCANNER, Vector2.ZERO)
+	for definition_id in GameState.SCANNER_SURVEY_TYPES:
+		GameState.note_planet_visited("preview:%s" % definition_id, definition_id)
+	# The panel owns a full-screen backdrop, so loading the entire live world
+	# only adds software-renderer work and no pixels that can be seen.
+	var menu: Control = load("res://ui/menus/ScannerMenu.tscn").instantiate()
+	add_child(menu)
+	menu.set_anchors_preset(Control.PRESET_TOP_LEFT)
+	menu.position = Vector2.ZERO
+	menu.size = get_viewport_rect().size
+	menu.open_menu()