Use mobile bottom sheet for Mini checkout and wrap Paystack in branded frame.

Amount entry slides up from the bottom on mobile; Paystack opens in a Ladill Mini sheet on mobile and a centered modal on desktop instead of leaving the site.

Co-authored-by: Cursor <cursoragent@cursor.com>

resources/views/partials/mini-paystack-frame-header.blade.php

@@ -0,0 +1,18 @@
+<div class="relative shrink-0 border-b border-slate-100 px-4 pb-3 pt-3">
+    <div class="absolute left-1/2 top-2 h-1 w-10 -translate-x-1/2 rounded-full bg-slate-200 md:hidden"></div>
+    <div class="flex items-center justify-between gap-3 pt-2 md:pt-0">
+        <div class="flex min-w-0 items-center gap-2.5">
+            <img src="{{ asset('images/logo/ladillmini-logo.svg') }}?v={{ @filemtime(public_path('images/logo/ladillmini-logo.svg')) ?: '1' }}"
+                 alt="Ladill Mini" class="h-5 w-auto shrink-0">
+            <p class="truncate text-sm font-semibold text-slate-800">Complete payment</p>
+        </div>
+        <button type="button"
+                @click="showSheet = false"
+                class="shrink-0 rounded-full p-1.5 text-slate-400 transition hover:bg-slate-100 hover:text-slate-700"
+                aria-label="Close">
+            <svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M6 18 18 6M6 6l12 12"/>
+            </svg>
+        </button>
+    </div>
+</div>