Fix mobile select zoom and unify optional-service version pickers.

Form controls smaller than 16px made iOS Safari auto-zoom on focus,
shifting page content upward. Enforce a 16px minimum font-size on
inputs/selects/textareas at mobile widths. Also replace the three tiny,
inconsistently-styled (colored-border, text-xs) version pickers in the
deploy wizard's optional-services cards with a shared .select-compact
style so they match the rest of the form.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/src/app/globals.css

@@ -68,6 +68,13 @@
            focus:outline-none focus:ring-2 focus:ring-primary-500/20 focus:border-primary-500
            transition-all duration-150;
   }
+  /* Compact, design-consistent select for inline rows (e.g. version pickers). */
+  .select-compact {
+    @apply rounded-lg border border-gray-300 bg-white px-2.5 py-1.5 text-sm shadow-sm
+           text-gray-800 cursor-pointer
+           focus:outline-none focus:ring-2 focus:ring-primary-500/20 focus:border-primary-500
+           transition-all duration-150;
+  }
 
   /* ─── Cards ──────────────────────────────────────────── */
   .card {
@@ -220,3 +227,13 @@ html.lenis body {
     animation: none;
   }
 }
+
+/* Mobile: keep form controls at a 16px minimum so iOS Safari doesn't auto-zoom
+   (and shift the page contents up) when a field/select is focused. */
+@media (max-width: 640px) {
+  input:not([type='checkbox']):not([type='radio']):not([type='range']),
+  select,
+  textarea {
+    font-size: 16px !important;
+  }
+}