Everything on the shared names — the copy-paste is gone

The ported markup was written a page at a time, so the same thing was said several ways. Counted before
touching anything: nine variants of the page gutter, seven max-widths, six link styles, two definitions of
an input, and one stray shadow.

Now: `container` (which already centres and pads), `measure`/`measure-wide`, `link`/`link-plain`/
`link-on-dark`, one `field`, `photo`, `page-head`. Nothing in a template writes `bg-white rounded-…
shadow-…` or `underline underline-offset-4` any more — 119 uses of `panel`, 82 of `label`, 52 of
`panel-lift`, 17 of `link`.

TWO REAL FIXES FELL OUT OF IT, not just tidying:

- Every section said `container mx-auto px-4`: `mx-auto` twice, and a px-4 that beat the responsive
  padding inside `container`. The gutter was 16px at every width, including on a 27-inch screen. Removing
  the copy-paste restores sm:px-6 lg:px-8, which is most of why the pages now breathe.
- The public form and the admin had grown two different inputs — cream vs white, ring-2 vs ring-1, py-2.5
  vs py-2, and different text sizes. There is one `field` now, and the same focus ring as everything else.

The admin uses the same names where they are the same thing (`link`, `field`, `h4`, `--radius-*`) and
keeps its own denser buttons, because it is a tool and not a shop front.

53 tests green. Every class used across all nine pages resolves in the compiled stylesheet — that check is
what makes a sweep this size safe to do with a script.

src/main/resources/templates/history.html

@@ -9,7 +9,7 @@
          class="absolute inset-0 w-full h-full object-cover object-bottom blur-[3px] scale-110">
     <div class="absolute inset-0 bg-bakery-900/80"></div>
     <div class="absolute inset-0 bg-gradient-to-t from-bakery-900 via-bakery-800/60 to-bakery-900/80"></div>
-    <div class="relative container mx-auto px-4 w-full min-w-0">
+    <div class="relative container w-full min-w-0">
       <div class="max-w-3xl mx-auto text-center">
         <p class="eyebrow text-bakery-200">Since 2024</p>
         <h1 class="h1 mt-3 text-bakery-50">Our story</h1>
@@ -20,10 +20,10 @@
     </div>
   </section>
 
-  <header class="container mx-auto px-4 pt-14 pb-2 md:pt-16 text-center"></header>
+  <header class="container pt-14 pb-2 md:pt-16 text-center"></header>
 
-  <div class="container mx-auto px-4 pb-16 md:pb-24">
-    <div class="max-w-2xl mx-auto space-y-12">
+  <div class="container pb-16 md:pb-24">
+    <div class="measure space-y-12">
       <section>
         <h2 class="h3 text-bakery-900 mb-4">How it started</h2>
         <p class="text-bakery-800 leading-relaxed">
@@ -67,8 +67,8 @@
 
   <!--/* Somewhere to go after reading: the story is a preamble to an order. */-->
   <section class="section bg-bakery-800 text-white">
-    <div class="container mx-auto px-4">
-      <div class="max-w-2xl mx-auto text-center">
+    <div class="container">
+      <div class="measure text-center">
         <h2 class="h3">Come and see us</h2>
         <p class="mt-4 text-bakery-100 leading-relaxed">
           We open at 7:00am, Tuesday through Saturday. If you are after something for a date in the