The shop knows when it is open, and says so — to visitors and to Google

Three things a bakery's site should do that this one couldn't, all from the same fact.

THE HOURS WERE MARKUP, so the only thing the site could do with them was print them. A visitor at half
past two on a Sunday had to work out for themselves that the shop was shut. They are data now (Shop.WEEK),
and `Hours` reads them two ways: as the list the footer and the contact page print — consecutive days with
the same times collapsed into one line, the way a sign does it, instead of three hand-written rows — and
as an answer. The header now says "Open until 2:00pm", or "Closed · opens Tuesday at 7:00am", worked out
on the server in the shop's own timezone. Right now, on a Sunday evening, it says the latter.

THE SHOP IS NOW DESCRIBED TO A SEARCH ENGINE: schema.org Bakery in the head, with the address, the phone
number and those same opening times. For a shop whose customers find it by searching its town, that is the
difference between a blue link and a listing that shows "Open ⋅ closes 2pm" — and it cannot drift from
what the page says, because it is built from the same record. Serialised with Jackson rather than
string-built, so the day somebody interpolates a name into it, it is not an injection. (Jackson 3 —
`tools.jackson` — which is what Boot 4 ships; the fasterxml import does not compile.)

A SHARED LINK NOW HAS A PICTURE. og:image, og:image:alt and a large summary card: it was a grey box with a
title, which is what every link to this site has looked like in a message.

AND IT PRINTS. The catering page is a price list and a bakery prints price lists — Ctrl-P now gives the
prices on paper rather than a screenshot of a website: no chrome, no sage bands eating a cartridge, cards
that don't split across a page break, and the buttons that only exist to be clicked marked `no-print`.

Five new tests, all of them free of Spring, because this is a calculation over a constant: the week
collapses as a sign would write it, the minute of opening counts as open and the minute of closing does
not, and a Saturday afternoon is told when Tuesday starts.

Also swept the last one-off styles the earlier pass missed — max-w-3xl/4xl, an inline letter-spacing the
.h2 class already carries, and the mobile menu's link string.

src/main/resources/templates/fragments/header.html

@@ -21,9 +21,15 @@
     <div class="flex items-center justify-between gap-2 h-20 md:h-24">
       <div th:replace="~{fragments/lockup :: small('text-bakery-700')}"></div>
 
-      <nav class="hidden md:flex items-center gap-8">
-        <th:block th:replace="~{:: links('label text-bakery-700 hover:text-bakery-900 transition-colors')}"></th:block>
-      </nav>
+      <div class="hidden md:flex items-center gap-8">
+        <nav class="flex items-center gap-8">
+          <th:block th:replace="~{:: links('label text-bakery-700 hover:text-bakery-900 transition-colors')}"></th:block>
+        </nav>
+        <!--/* Worked out on the server from the same opening times the footer prints. */-->
+        <p th:replace="~{fragments/visit :: open-now(
+               ${openNow.open} ? 'bg-bakery-500' : 'bg-bakery-300',
+               'text-sm text-bakery-600 whitespace-nowrap')}"></p>
+      </div>
 
       <details class="group md:hidden shrink-0">
         <summary class="p-2 cursor-pointer list-none" aria-label="Menu">
@@ -38,7 +44,10 @@
         </summary>
         <div class="absolute inset-x-0 top-full z-30 h-[calc(100dvh-5rem)] bg-bakery-50">
           <nav class="container flex flex-col">
-            <th:block th:replace="~{:: links('text-bakery-800 hover:text-bakery-600 transition py-4 text-lg border-b border-bakery-100')}"></th:block>
+            <th:block th:replace="~{:: links('text-bakery-800 hover:text-bakery-600 transition-colors py-4 text-lg border-b border-bakery-100')}"></th:block>
+            <p th:replace="~{fragments/visit :: open-now(
+                   ${openNow.open} ? 'bg-bakery-500' : 'bg-bakery-300',
+                   'text-sm text-bakery-600 py-4')}"></p>
           </nav>
         </div>
       </details>