fix: full Apple HIG mobile + SEO audit - all issues resolved

MOBILE RESPONSIVENESS (Apple HIG):
- HeroSection: typography scaled 7xl→4xl sm:5xl md:6xl lg:7xl, responsive px/py, rounded-2xl, active:scale-95
- Cart quantity buttons: h-8→h-11 w-8→w-11 (44px touch target), rounded-xl, active:scale-95
- StorefrontFooter newsletter: responsive w-full sm:w-52 lg:w-64, aria-label, larger touch targets
- StorefrontHeader mobile nav: padding px-6→px-4 py-6→py-5
- AdminTable: overflow-x-auto + min-w-[600px] for horizontal scroll
- AdminOrdersPanel: same table overflow fix
- AdminLayout: mobile px-4 sm:px-6 py-6 sm:py-10
- AdminFilterTabs: responsive text/text sizes
- AdminSidebar hamburger: h-10→h-11 w-10→w-11 (44px touch target)
- DashboardClient: grid gap-3 sm:gap-4, responsive stat text
- OrderEditForm: grid-cols-1 sm:grid-cols-2 (was 2, breaks on mobile)
- BillingClient: min-h-[44px] on select/button
- ProductsClient: h-32 sm:h-40 responsive image height
- StopCard: line-clamp-2 instead of line-clamp-1 on location
- CommunicationsPage: tabs wrapped in overflow-x-auto
- Checkout page: grid breakpoint md not lg
- Tuxedo page: SectionHeader mobile-first, feature grid grid-cols-1 sm:2, label visible
- Tuxedo stats: text-3xl sm:text-4xl

SEO METADATA:
- Root layout: viewport export, full OG/Twitter, metadataBase, keywords, robots
- Tuxedo layout: complete OG + Twitter + canonical + keywords
- Indian River layout: complete OG + Twitter + canonical + keywords
- Tuxedo/IRD FAQ pages: new layout.tsx with full metadata + FAQPage JSON-LD schema
- Tuxedo/IRD Contact pages: new layout.tsx with full metadata
- Pricing page: expanded metadata with OG/Twitter
- Contact page: refactored to layout+ClientPage structure
- Sitemap: updated with dynamic stop URLs, async function

SCHEMA + STRUCTURED DATA:
- FAQPage JSON-LD on FAQ pages
- BreadcrumbList JSON-LD on storefront layouts
- BreadcrumbNav component created (Apple HIG compliant)

BUG FIXES:
- Indian River: replaced raw <img> with Next.js Image component
- Indian River: verified single H1 (others are h2)
- Stop card: location line-clamp-2 for better readability

TYPE CHECK: all pass

src/app/tuxedo/page.tsx

@@ -548,7 +548,7 @@ export default function TuxedoPage() {
             <div className="mb-14 flex items-end justify-between">
               <div>
                 <p className="text-[11px] font-semibold uppercase tracking-widest text-emerald-600 mb-4">Delivery Stops</p>
-                <h2 className="text-5xl md:text-6xl font-black tracking-tight text-stone-950 leading-[1.05]">
+                <h2 className="text-3xl sm:text-4xl md:text-5xl lg:text-6xl font-black tracking-tight text-stone-950 leading-[1.05]">
                   Upcoming<br className="hidden md:block" /> Stops
                 </h2>
                 <div className="mt-6 h-px w-12 bg-emerald-600" />
@@ -656,7 +656,7 @@ export default function TuxedoPage() {
                   { stat: "100%", label: "Hand-Picked" },
                 ].map(({ stat, label }) => (
                   <div key={label} className="text-center">
-                    <p className="text-4xl font-black text-white">{stat}</p>
+                    <p className="text-3xl sm:text-4xl font-black text-white">{stat}</p>
                     <p className="mt-1 text-xs text-stone-500 uppercase tracking-widest">{label}</p>
                   </div>
                 ))}