Wire the first-shift tutorial into gameplay

Add the non-blocking prompt card, safe compliant visitor, action-driven
advancement through the real wheel/inspection/warning/radio panels, persisted
completion/skip, a Settings replay action and localized tutorial strings.
Scripted tests/captures bypass the tutorial unless --tutorial is passed. Add a
windowed smoke covering the full flow. Headless 237/237, Python 94/94, tutorial
smoke passes.

src/game/ui/settings_panel.gd

@@ -10,6 +10,7 @@ const InputBindings := preload("res://src/core/input_bindings.gd")
 const UiArt := preload("res://src/game/ui/art.gd")
 
 signal applied(settings: Dictionary)
+signal replay_tutorial_requested()
 signal closed()
 
 var _root: Control = null
@@ -86,6 +87,15 @@ func _build() -> void:
 	_head_bob.toggled.connect(_on_head_bob_toggled)
 	column.add_child(_head_bob)
 
+	var replay_row := HBoxContainer.new()
+	replay_row.alignment = BoxContainer.ALIGNMENT_CENTER
+	column.add_child(replay_row)
+	var replay := Button.new()
+	replay.name = "ReplayTutorialButton"
+	replay.text = "Replay tutorial"
+	replay.pressed.connect(func(): replay_tutorial_requested.emit())
+	replay_row.add_child(replay)
+
 	var controls_title := Label.new()
 	controls_title.text = "Controls (click a binding, then press a key or pad button)"
 	controls_title.add_theme_font_size_override("font_size", 13)

src/game/ui/tutorial_overlay.gd

@@ -0,0 +1,87 @@
+class_name TutorialOverlay
+extends CanvasLayer
+
+const Strings := preload("res://src/core/strings.gd")
+## Non-blocking first-shift tutorial card. It never takes mouse input; F1 is
+## handled by GameManager so the prompt can stay visible while the player moves.
+
+var _panel: PanelContainer = null
+var _prompt: Label = null
+var _progress: Label = null
+
+func _init() -> void:
+	layer = 14
+	_build()
+	hide()
+
+func _build() -> void:
+	var root := Control.new()
+	root.name = "TutorialRoot"
+	root.set_anchors_preset(Control.PRESET_FULL_RECT)
+	root.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	add_child(root)
+
+	_panel = PanelContainer.new()
+	_panel.name = "TutorialCard"
+	_panel.set_anchor(SIDE_LEFT, 0.5)
+	_panel.set_anchor(SIDE_RIGHT, 0.5)
+	_panel.set_anchor(SIDE_TOP, 0.08)
+	_panel.set_anchor(SIDE_BOTTOM, 0.08)
+	_panel.offset_left = -330
+	_panel.offset_right = 330
+	_panel.offset_top = 0
+	_panel.offset_bottom = 112
+	_panel.mouse_filter = Control.MOUSE_FILTER_IGNORE
+	var style := StyleBoxFlat.new()
+	style.bg_color = Color(0.035, 0.045, 0.06, 0.92)
+	style.border_color = Color(0.62, 0.69, 0.8, 0.55)
+	style.border_width_left = 1
+	style.border_width_top = 1
+	style.border_width_right = 1
+	style.border_width_bottom = 1
+	style.corner_radius_top_left = 10
+	style.corner_radius_top_right = 10
+	style.corner_radius_bottom_left = 10
+	style.corner_radius_bottom_right = 10
+	style.content_margin_left = 18
+	style.content_margin_right = 18
+	style.content_margin_top = 10
+	style.content_margin_bottom = 10
+	_panel.add_theme_stylebox_override("panel", style)
+	root.add_child(_panel)
+
+	var column := VBoxContainer.new()
+	column.add_theme_constant_override("separation", 3)
+	_panel.add_child(column)
+
+	var header := HBoxContainer.new()
+	column.add_child(header)
+	var title := Label.new()
+	title.text = Strings.lookup("tutorial.header")
+	title.add_theme_font_size_override("font_size", 12)
+	title.modulate = Color(0.6, 0.8, 1.0)
+	title.size_flags_horizontal = Control.SIZE_EXPAND_FILL
+	header.add_child(title)
+	_progress = Label.new()
+	_progress.add_theme_font_size_override("font_size", 12)
+	_progress.modulate = Color(0.65, 0.7, 0.78)
+	header.add_child(_progress)
+
+	_prompt = Label.new()
+	_prompt.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
+	_prompt.add_theme_font_size_override("font_size", 15)
+	column.add_child(_prompt)
+
+	var hint := Label.new()
+	hint.text = Strings.lookup("tutorial.skip_hint")
+	hint.add_theme_font_size_override("font_size", 11)
+	hint.modulate = Color(0.55, 0.6, 0.68)
+	column.add_child(hint)
+
+func show_beat(text: String, progress: Vector2i) -> void:
+	_prompt.text = text
+	_progress.text = "%d/%d" % [progress.x, progress.y]
+	visible = true
+
+func close() -> void:
+	visible = false