De-fork POS chrome/assets and import CRM products only

Finish removing the upstream platform fork: drop the Hosting/SSL/Domain
notification classes + their mail views, the email/mailbox/domains/hosting
view trees, the Mini/Afia/search/paystack partials and unused components, and
the now-orphan support helpers (DomainConfig, MailboxPricing,
ResellerClubLegacy), SmsService, and fork configs (afia, hosting, domain,
email, mailbox, qr, mail_brands, notifications, ...). Reparent the
notifications page off the hosting layout onto the POS app layout (it had
referenced undefined hosting./mini. routes). Computed the removable set from a
reachability scan of the POS view graph; kept views reference no removed
routes/services.

Branding: favicon now uses the updated favicon.ico (favicon.svg removed);
signed-out fallback logo points at the POS logo.

CRM import: constrain the catalogue pull to type=product so CRM services are
never imported as POS products (server-side filter + defensive client skip).

Test suite green (8 passed, 29 assertions); all routes resolve and every
remaining Blade compiles.

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

resources/views/partials/paystack-sheet.blade.php

@@ -1,44 +0,0 @@
-{{--
-    Paystack mobile bottom-sheet iframe.
-    Requires Alpine.js ancestor with: showSheet (bool), checkoutUrl (string).
-    On mobile (< md) the sheet slides up; on desktop nothing renders.
---}}
-<template x-teleport="body">
-    <div x-show="showSheet"
-         x-cloak
-         class="fixed inset-0 z-[9999] flex flex-col justify-end md:hidden"
-         role="dialog"
-         aria-modal="true">
-
-        <div class="absolute inset-0 bg-black/60"
-             x-show="showSheet"
-             x-transition:enter="transition-opacity duration-300"
-             x-transition:enter-start="opacity-0"
-             x-transition:enter-end="opacity-100"
-             x-transition:leave="transition-opacity duration-200"
-             x-transition:leave-start="opacity-100"
-             x-transition:leave-end="opacity-0"
-             @click="showSheet = false">
-        </div>
-
-        <div class="relative flex flex-col overflow-hidden rounded-t-2xl bg-white"
-             style="height:90dvh; padding-bottom: env(safe-area-inset-bottom, 0px)"
-             x-show="showSheet"
-             x-transition:enter="transition-transform duration-300 ease-out"
-             x-transition:enter-start="translate-y-full"
-             x-transition:enter-end="translate-y-0"
-             x-transition:leave="transition-transform duration-200 ease-in"
-             x-transition:leave-start="translate-y-0"
-             x-transition:leave-end="translate-y-full">
-
-            @include('partials.mini-paystack-frame-header')
-
-            <iframe :src="showSheet ? checkoutUrl : ''"
-                    class="min-h-0 flex-1 w-full border-0"
-                    allow="payment"
-                    title="Paystack checkout"></iframe>
-
-            @include('partials.mini-paystack-frame-footer')
-        </div>
-    </div>
-</template>