chore(supabase): full purge — remove all Supabase references from codebase

- Delete supabase/ directory (config.toml, push-migrations.js,
  ADMIN_CREATE_STOP_FIX.sql, 137 archived migration files)
- Remove @supabase/ssr and @supabase/supabase-js from package.json
- Strip *.supabase.co from next.config.ts image hostnames
- Strip https://*.supabase.co from vercel.json CSP connect-src
- Remove 'supabase/**' ignore from eslint.config.mjs
- Clean supabase references from src/lib/db.ts, vitest.config.ts,
  db/seeds/2026-tuxedo-tour-stops.sql, src/actions/storefront.ts,
  scripts/import-tuxedo-stops.ts comments
- Rewrite env-var docs in README, ENVIRONMENT, PRODUCTION_SETUP,
  PRODUCTION_DEPLOYMENT_CHECKLIST, LAUNCH_CHECKLIST, CLAUDE,
  MEMORY, REPORT to drop NEXT_PUBLIC_SUPABASE_URL /
  SUPABASE_SERVICE_ROLE_KEY / supabase link / supabase CLI references

The canonical migration runner is now scripts/migrate.js (uses pg
directly via DATABASE_URL). Migrations live in db/migrations/. The
Supabase CLI is no longer in the codebase. The only remaining
'@supabase/*' in the dep tree is @supabase/auth-js as a transitive
of @neondatabase/auth (Neon Auth / Better Auth).

Final source scan: grep -rln '@supabase\|rest/v1\|supabase\.co'
src/ tests/ db/ scripts/ next.config.ts vercel.json eslint.config.mjs
package.json returns zero. Verification: npm install clean
(11 added, 21 removed, 12 changed), tsc shows same 17 pre-existing
errors (Stripe dahlia API version + fetch preconnect mocks),
vitest 172/175 (3 pre-existing failures in getAdminUser.test.ts),
lint shows same 14 pre-existing errors. Live-tested: dev server
boots in 248ms, public storefronts (/) (/login) (/pricing) (/tuxedo)
(/indian-river-direct) all return 200; /admin/v2?demo=1 reaches 200
after dev_session redirect; storefront renders real brand content.

supabase/migrations/.archived/059_order_status_delete.sql

@@ -1,63 +0,0 @@
--- Migration 059: Order status update + delete RPCs
--- Needed by the redesigned Actions column dropdown in WholesaleClient.tsx
-
-BEGIN;
-
--- ── update_wholesale_order_status ───────────────────────────────────────────
-DROP FUNCTION IF EXISTS public.update_wholesale_order_status(UUID, TEXT);
-CREATE OR REPLACE FUNCTION public.update_wholesale_order_status(
-  p_order_id UUID,
-  p_status TEXT DEFAULT 'pending'
-)
-RETURNS JSONB
-LANGUAGE plpgsql SECURITY DEFINER SET search_path = public
-AS $$
-DECLARE
-  v_order RECORD;
-BEGIN
-  SELECT id, status INTO v_order FROM wholesale_orders WHERE id = p_order_id FOR UPDATE;
-  IF NOT FOUND THEN
-    RETURN jsonb_build_object('success', false, 'error', 'Order not found');
-  END IF;
-
-  IF v_order.status = 'fulfilled' THEN
-    RETURN jsonb_build_object('success', false, 'error', 'Cannot change status of a fulfilled order');
-  END IF;
-
-  UPDATE wholesale_orders
-  SET status = p_status, updated_at = now()
-  WHERE id = p_order_id;
-
-  RETURN jsonb_build_object('success', true);
-END;
-$$;
-
--- ── delete_wholesale_order ───────────────────────────────────────────────────
-DROP FUNCTION IF EXISTS public.delete_wholesale_order(UUID);
-CREATE OR REPLACE FUNCTION public.delete_wholesale_order(p_order_id UUID)
-RETURNS JSONB
-LANGUAGE plpgsql SECURITY DEFINER SET search_path = public
-AS $$
-DECLARE
-  v_order RECORD;
-BEGIN
-  SELECT id, status INTO v_order FROM wholesale_orders WHERE id = p_order_id FOR UPDATE;
-  IF NOT FOUND THEN
-    RETURN jsonb_build_object('success', false, 'error', 'Order not found');
-  END IF;
-
-  IF v_order.status = 'fulfilled' THEN
-    RETURN jsonb_build_object('success', false, 'error', 'Cannot delete a fulfilled order');
-  END IF;
-
-  DELETE FROM wholesale_order_items WHERE wholesale_order_id = p_order_id;
-  DELETE FROM wholesale_notifications WHERE order_id = p_order_id;
-  DELETE FROM wholesale_orders WHERE id = p_order_id;
-
-  RETURN jsonb_build_object('success', true);
-END;
-$$;
-
-COMMIT;
-
-NOTIFY pgrst, 'reload schema';