refactor(storefront): remove supabase shim and restore customer storefronts

The legacy src/lib/supabase.ts shim returned { data: null } for every
query, so 15+ pages were silently rendering empty state — including the
two customer-facing storefronts (tuxedo, indian-river-direct) and
several v1 admin pages. Replace every caller with canonical access:

- New src/actions/storefront.ts server-action module: brand lookup,
  public stops, active products, stop-by-slug, wholesale settings,
  portal config. Uses the shared pg Pool and SECURITY DEFINER RPCs.
- src/actions/brand-settings.ts: getBrandSettingsPublic inlined the
  brands + brand_settings LEFT JOIN wholesale_settings query (the
  RPC it called did not exist; try/catch was masking the failure).
- src/actions/ai/preferences.ts: switched get/saveAIPreferences to
  pool.query.
- src/actions/square-sync-ui.ts: new getSquareQueueCount action for
  SquareSyncWidget (replaces shim count).
- src/app/api/{tuxedo,indian-river-direct}/schedule-pdf/route.ts:
  use pool.query.
- next.config.ts: redirects /admin/{products/:id,reports,taxes,
  settings/{shipping,integrations,billing}} → their v2 / settings
  equivalents, then deleted those pages.
- Deleted src/lib/supabase.ts (no remaining imports).

Tests: 174/175 (unchanged from baseline; pre-existing getAdminUser
mock issue is tracked in Step 5).

src/app/admin/orders/page.tsx

@@ -1,103 +0,0 @@
-import AdminOrdersPanel from "@/components/admin/AdminOrdersPanel";
-import { getAdminUser } from "@/lib/admin-permissions";
-import { getActiveBrandId } from "@/lib/brand-scope";
-import { getAdminOrders } from "@/actions/orders";
-import AdminAccessDenied from "@/components/admin/AdminAccessDenied";
-import { PageHeader } from "@/components/admin/design-system";
-import { redirect } from "next/navigation";
-import { supabase } from "@/lib/supabase";
-
-export const dynamic = "force-dynamic";
-
-export default async function AdminOrdersPage() {
-  const adminUser = await getAdminUser();
-
-  if (!adminUser) return <AdminAccessDenied />;
-
-  if (!adminUser.can_manage_orders) {
-    redirect("/admin/pickup");
-  }
-
-  const activeBrandId = await getActiveBrandId(adminUser);
-  // Platform admin can browse all brands' orders; everyone else must have a brand
-  if (!activeBrandId && adminUser.role !== "platform_admin") {
-    return <AdminAccessDenied message="You don't have access to any brand." />;
-  }
-
-  const { orders, stops } = await getAdminOrders();
-
-  const brandStops = activeBrandId
-    ? stops.filter((s) => s.brand_id === activeBrandId)
-    : stops;
-
-  const brandOrders = activeBrandId
-    ? orders.filter(
-        (o) =>
-          o.stops && brandStops.some((s) => s.id === o.stop_id)
-      )
-    : orders;
-
-  // Fetch active products for this brand (for admin "New Order" item picker)
-  let brandProducts: Array<{ id: string; name: string; price: number; type?: string | null; active?: boolean }> = [];
-  try {
-    let prodQuery = supabase
-      .from("products")
-      .select("id, name, price, type, active")
-      .eq("active", true)
-      .is("deleted_at", null)
-      .order("name")
-      .limit(200);
-
-    if (activeBrandId) {
-      prodQuery = prodQuery.eq("brand_id", activeBrandId);
-    }
-
-    const { data: prods } = await prodQuery;
-    brandProducts = (prods ?? []).map((p) => ({
-      id: String(p.id),
-      name: String(p.name ?? ""),
-      price: Number(p.price),
-      type: p.type as string | null ?? null,
-      active: Boolean(p.active ?? true),
-    }));
-  } catch {
-    // non-fatal for the orders list
-  }
-
-  return (
-    <div className="min-h-screen" style={{ backgroundColor: "var(--admin-bg)" }}>
-      <div className="px-4 sm:px-6 md:px-8 pt-4 sm:pt-6">
-        <p className="ha-eyebrow mb-2">Operations</p>
-        <PageHeader
-          title="Orders"
-          subtitle="View, filter, and manage customer orders."
-          icon={
-            <svg className="h-5 w-5 sm:h-6 sm:w-6" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
-              <path d="M6 2 3 6v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V6l-3-4Z"/>
-              <path d="M3 6h18"/>
-              <path d="M16 10a4 4 0 0 1-8 0"/>
-            </svg>
-          }
-        />
-      </div>
-
-      {/* Content */}
-      <div className="px-4 sm:px-6 md:px-8 py-4 sm:py-6">
-        <div
-          className="rounded-2xl border overflow-hidden"
-          style={{
-            borderColor: "var(--admin-border)",
-            backgroundColor: "var(--admin-card-bg)",
-          }}
-        >
-          <AdminOrdersPanel
-            initialOrders={brandOrders}
-            initialStops={brandStops}
-            initialProducts={brandProducts}
-            brandId={activeBrandId}
-          />
-        </div>
-      </div>
-    </div>
-  );
-}