Refactor: move public storefront stop data to server-side + parallel agent work

Server-side / caching refactor (Grok):
- New RPC get_public_stops_for_brand (migration 148) for public storefront stops
- New server action getPublicStopsForBrand with revalidate=300 + tags
- Add revalidateTag invalidation to createStopsBatch + publishStop
- Convert /tuxedo/stops and /indian-river-direct/stops to Server Components
- Extract TuxedoStopsList + IndianRiverStopsList as client islands (GSAP only)
- Removes supabase-js from browser bundle on those routes
- Both pages now statically prerendered (5m ISR)

Parallel agent changes also staged:
- AI provider model list refresh (claude-sonnet-4-5, etc.)
- ESLint directive patches for react-hooks/set-state-in-effect
- Admin + storefront + checkout + cart updates
- New admin_create_stop_rpcs migration (147)
- Misc fixes across ~90 files

Build verified: typecheck clean, lint clean on new files, production build succeeds.

src/app/waitlist/page.tsx

@@ -1,5 +1,6 @@
 import type { Metadata } from "next";
 import WaitlistForm from "@/components/marketing/WaitlistForm";
+import Link from "next/link";
 
 export const metadata: Metadata = {
   title: "Join the Waitlist — Route Commerce",
@@ -16,14 +17,14 @@ export default function WaitlistPage() {
       {/* Header */}
       <header className="border-b border-[#6b8f71]/20 bg-white/80 backdrop-blur-md">
         <div className="max-w-5xl mx-auto px-6 py-4 flex items-center justify-between">
-          <a href="/" className="flex items-center gap-3">
+          <Link href="/" className="flex items-center gap-3">
             <div className="w-11 h-11 rounded-2xl bg-gradient-to-br from-[#1a4d2e] to-[#2d6a4f] flex items-center justify-center shadow-lg shadow-[#1a4d2e]/20">
               <svg className="w-6 h-6 text-white" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2.5}>
                 <path strokeLinecap="round" strokeLinejoin="round" d="M13 10V3L4 14h7v7l9-11h-7z" />
               </svg>
             </div>
             <span className="text-xl font-bold text-[#1a1a1a] tracking-tight" style={{ fontFamily: "'Cormorant Garamond', Georgia, serif" }}>Route Commerce</span>
-          </a>
+          </Link>
         </div>
       </header>