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/060_wholesale_pickup_orders.sql

@@ -1,68 +0,0 @@
--- Migration 060: Wholesale Pickup Orders RPC for Employee Portal
--- Returns unfulfilled wholesale orders partitioned by pickup date queue:
---   past_due:  anticipated_pickup_date < today
---   today:     anticipated_pickup_date = today
---   upcoming:  anticipated_pickup_date > today
--- Uses correlated subquery pattern (same fix as migration 058).
-
-BEGIN;
-
-DROP FUNCTION IF EXISTS public.get_wholesale_pickup_orders(UUID);
-CREATE OR REPLACE FUNCTION public.get_wholesale_pickup_orders(p_brand_id UUID DEFAULT NULL)
-RETURNS JSONB
-LANGUAGE plpgsql SECURITY DEFINER SET search_path = public
-AS $$
-DECLARE
-  v_result JSONB;
-BEGIN
-  SELECT jsonb_agg(t ORDER BY t.anticipated_pickup_date ASC) INTO v_result
-  FROM (
-    SELECT
-      wo.id,
-      wo.status,
-      wo.fulfillment_status,
-      wo.payment_status,
-      wo.anticipated_pickup_date,
-      wo.subtotal,
-      wo.deposit_required,
-      wo.deposit_paid,
-      wo.balance_due,
-      wo.invoice_number,
-      wo.created_at,
-      wo.updated_at,
-      wo.fulfilled_at,
-      wc.company_name,
-      wc.contact_name,
-      wc.email AS customer_email,
-      wc.phone AS customer_phone,
-      COALESCE(
-        (SELECT jsonb_agg(
-          CASE WHEN woi.id IS NOT NULL THEN
-            jsonb_build_object(
-              'id', woi.id,
-              'product_name', wp.name,
-              'quantity', woi.quantity,
-              'unit_price', woi.unit_price,
-              'line_total', woi.line_total
-            )
-          END
-        )
-        FROM wholesale_order_items woi
-        LEFT JOIN wholesale_products wp ON woi.product_id = wp.id
-        WHERE woi.wholesale_order_id = wo.id),
-        '[]'::JSONB
-      ) AS items
-    FROM wholesale_orders wo
-    JOIN wholesale_customers wc ON wo.customer_id = wc.id
-    WHERE wo.brand_id = p_brand_id
-      AND wo.fulfillment_status != 'fulfilled'
-    ORDER BY wo.anticipated_pickup_date ASC
-    LIMIT 500
-  ) t;
-  RETURN COALESCE(v_result, '[]'::JSONB);
-END;
-$$;
-
-COMMIT;
-
-NOTIFY pgrst, 'reload schema';