feat(composition): dive world assembled from a selected site definition

The calibration site spawn sat 16 m from the south bounds edge, inside the
40 m warning margin. The vehicle_test recipe now extends the terrain and
playable bounds 42 m to the south so the spawn is inside the zone.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

game/presentation/cockpit/cockpit_hud.gd

@@ -5,9 +5,12 @@ const DiveUpdate = preload("res://game/domain/dive/dive_update.gd")
 const DiveAlertLevel = preload("res://game/domain/dive/dive_alert_level.gd")
 const DiveTerminalReason = preload("res://game/domain/dive/dive_terminal_reason.gd")
 const VehicleTelemetry = preload("res://game/application/dive/vehicle_telemetry.gd")
+const PlayableBoundsStatus = preload("res://game/application/sites/playable_bounds_status.gd")
 
 @onready var _alert_panel: PanelContainer = %AlertPanel
 @onready var _alert_label: Label = %AlertLabel
+@onready var _bounds_panel: PanelContainer = %BoundsPanel
+@onready var _bounds_label: Label = %BoundsLabel
 @onready var _ejection_panel: PanelContainer = %EjectionPanel
 @onready var _ejection_label: Label = %EjectionLabel
 @onready var _terminal_panel: PanelContainer = %TerminalPanel
@@ -29,6 +32,21 @@ func present(update: DiveUpdate, telemetry: VehicleTelemetry) -> void:
 		]
 
 
+func present_bounds(status: PlayableBoundsStatus) -> void:
+	if status == null or not status.requires_warning():
+		_bounds_panel.visible = false
+		return
+	_bounds_panel.visible = true
+	if status.state == PlayableBoundsStatus.State.OUTSIDE:
+		_bounds_label.text = tr("HORS ZONE · FAITES DEMI-TOUR")
+	else:
+		_bounds_label.text = "%s · %d m" % [tr("LIMITE DE ZONE"), int(status.distance_to_edge_m)]
+
+
+func bounds_warning_visible() -> bool:
+	return _bounds_panel.visible
+
+
 func alert_overlay_visible() -> bool:
 	return _alert_panel.visible