feat(m4c): title screen is emit-only (routing moves to GameFlow)

client/scripts/ui/title/title_screen.gd

@@ -9,8 +9,6 @@ extends Control
 
 signal menu_activated(id: StringName)
 
-const SHELL := "res://scenes/shell/MainWindowShell.tscn"
-
 var _rows: Array = []
 var _sel: int = 0
 
@@ -44,7 +42,6 @@ func _ready() -> void:
 	_wire_row_mouse()
 
 	_footer_left.text = Version.new().footer()
-	menu_activated.connect(_on_menu_activated)
 	_update_selection()
 
 
@@ -128,16 +125,6 @@ func _activate(i: int) -> void:
 	menu_activated.emit(_rows[i].get_meta("action"))
 
 
-func _on_menu_activated(id: StringName) -> void:
-	match id:
-		&"new_game":
-			get_tree().change_scene_to_file(SHELL)
-		&"quit":
-			get_tree().quit()
-		_:
-			pass  # inert placeholder — the screen lands in a later milestone
-
-
 func _update_selection() -> void:
 	for i in range(_rows.size()):
 		var row: Control = _rows[i]