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/indian-river-direct/contact/ContactClientPage.tsx

@@ -5,7 +5,8 @@ import { motion } from "framer-motion";
 import StorefrontHeader from "@/components/storefront/StorefrontHeader";
 import StorefrontFooter from "@/components/storefront/StorefrontFooter";
 import LayoutContainer from "@/components/layout/LayoutContainer";
-import { supabase } from "@/lib/supabase";
+import { getBrandSettingsPublic } from "@/actions/brand-settings";
+import { getStorefrontWholesaleSettings } from "@/actions/storefront";
 
 type BrandSettings = {
   invoice_business_name: string | null;
@@ -34,17 +35,22 @@ export default function IndianRiverContactPage() {
   const [contactPhone, setContactPhone] = useState<string | null>(null);
 
   useEffect(() => {
-    supabase.from("brands").select("id").eq("slug", "indian-river-direct").single().then(({ data: brand }) => {
-      if (!brand?.id) return;
-      supabase.from("wholesale_settings")
-        .select("invoice_business_name, invoice_business_address, invoice_business_phone, invoice_business_email, invoice_business_website")
-        .eq("brand_id", brand.id).single().then(({ data }) => setBrandSettings((data as unknown as BrandSettings) ?? null));
-      supabase.from("brand_settings").select("logo_url, custom_footer_text, email, phone")
-        .eq("brand_id", brand.id).single().then(({ data: s }) => {
-          if (s) { setLogoUrl((s as { logo_url: string | null }).logo_url ?? null); setCustomFooterText((s as { custom_footer_text: string | null }).custom_footer_text ?? null); setContactEmail((s as { email: string | null }).email ?? null); setContactPhone((s as { phone: string | null }).phone ?? null); }
-        });
-      try { import("@/actions/admin-user").then(({ getCurrentAdminUser }) => { getCurrentAdminUser().then((u: unknown) => setIsAdmin(!!u)); }); } catch { /* not logged in */ }
+    Promise.all([
+      getStorefrontWholesaleSettings("indian-river-direct"),
+      getBrandSettingsPublic("indian-river-direct"),
+    ]).then(([wholesale, brandSettings]) => {
+      setBrandSettings(wholesale as BrandSettings | null);
+      if (brandSettings.success && brandSettings.settings) {
+        const s = brandSettings.settings;
+        setLogoUrl(s.logo_url ?? null);
+        setCustomFooterText(s.custom_footer_text ?? null);
+        setContactEmail(s.email ?? null);
+        setContactPhone(s.phone ?? null);
+      }
     });
+    import("@/actions/admin-user").then(({ getCurrentAdminUser }) => {
+      getCurrentAdminUser().then((u: unknown) => setIsAdmin(!!u));
+    }).catch(() => { /* not logged in */ });
   }, []);
 
   function handleSubmit(e: React.FormEvent) {

src/app/indian-river-direct/faq/FAQClientPage.tsx

@@ -6,7 +6,7 @@ import { motion } from "framer-motion";
 import StorefrontHeader from "@/components/storefront/StorefrontHeader";
 import StorefrontFooter from "@/components/storefront/StorefrontFooter";
 import LayoutContainer from "@/components/layout/LayoutContainer";
-import { supabase } from "@/lib/supabase";
+import { getBrandSettingsPublic } from "@/actions/brand-settings";
 
 type FAQCategory = {
   category: string;
@@ -136,10 +136,10 @@ export default function IndianRiverFAQPage() {
   const [searchQuery, setSearchQuery] = useState("");
 
   useEffect(() => {
-    supabase.from("brand_settings").select("phone").eq("brand_id",
-      "b1cb7a96-d82b-40b1-80b1-d6dd26c56e28"
-    ).single().then(({ data }) => {
-      if (data && (data as { phone: string | null }).phone) setFaqCategories(buildFaqCategories((data as { phone: string | null }).phone!));
+    getBrandSettingsPublic("indian-river-direct").then((result) => {
+      if (result.success && result.settings?.phone) {
+        setFaqCategories(buildFaqCategories(result.settings.phone));
+      }
     });
   }, []);