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/autoload/save.gd

@@ -47,6 +47,8 @@ const DEFAULT_SETTINGS := {
 	"head_bob": true,
 	"input_bindings": {},
 	"ai_difficulty": "normal",
+	"tutorial_completed": false,
+	"tutorial_skipped": false,
 }
 
 ## Load player settings, merged over the defaults. Returns a Dictionary.