test(ui-lab): add tagger readiness scenarios

Add UI Lab scenarios for uninstalled WD and JoyTag tagger states so the lightbox and AI Workspace readiness flows can be exercised directly.

Make the Settings title-bar button accessible by label to support reliable UI Lab automation.

src/dev/mockScenarios.ts

@@ -1,4 +1,14 @@
-export type MockScenario = "rich" | "empty" | "busy" | "duplicates" | "album" | "errors" | "huge" | "extreme";
+export type MockScenario =
+  | "rich"
+  | "empty"
+  | "busy"
+  | "duplicates"
+  | "album"
+  | "errors"
+  | "huge"
+  | "extreme"
+  | "unready"
+  | "joytag-unready";
 
 const SCENARIOS = new Set<MockScenario>([
   "rich",
@@ -9,6 +19,8 @@ const SCENARIOS = new Set<MockScenario>([
   "errors",
   "huge",
   "extreme",
+  "unready",
+  "joytag-unready",
 ]);
 
 export function getMockScenario(): MockScenario {