fix(routines): test the copy, name what Yes agrees to, and true up the docs

Make it mine's copying was inline in App and untested; it is now a pure
function with a test, so a change to either store can't make the copy
silently arrive empty. The question's buttons now say what they answer
when heard out of context. The prefs block and the spec now match what
shipped.

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

test/views.test.tsx

@@ -1507,6 +1507,9 @@ describe("built-in weekly tasks in the strip", () => {
     expect(html).toContain("Track Zenless Zone Zero");
     expect(html).toContain("weekly tasks?");
     expect(html).toContain("No thanks");
+    // Heard out of context, "Yes" has to say what it agrees to.
+    expect(html).toContain(`aria-label="Yes, track Zenless Zone Zero's built-in weekly tasks"`.replace("'", "'"));
+    expect(html).toContain(`aria-label="No thanks to Zenless Zone Zero's built-in weekly tasks"`.replace("'", "'"));
   });
 
   test("with nothing to show and nothing to ask, the strip is absent", () => {