refactor: simplify order status model — remove DELIVERY_FEE_ADJUSTMENT and PAYMENT_VERIFICATION

- Add deliveryFeeLocked field to Order model
- Remove DELIVERY_FEE_ADJUSTMENT and PAYMENT_VERIFICATION statuses (11→8)
- 3 order paths: delivery+online (locked→unlocked→paid), pickup+online (unlocked→paid), pickup+on_pickup (direct to in_progress)
- Update checkout to use PENDING_PAYMENT + deliveryFeeLocked
- Update payment flow to stay in PENDING_PAYMENT until admin confirms
- Update admin UI to use deliveryFeeLocked instead of status check
- Update client payment UI with new deliveryFeeLocked logic

server/src/routes/api/admin-orders.js

@@ -8,7 +8,7 @@ export async function registerAdminOrderRoutes(fastify) {
     async () => {
       const attentionCount = await prisma.order.count({
         where: {
-          status: { in: ['DELIVERY_FEE_ADJUSTMENT', 'PENDING_PAYMENT', 'PAYMENT_VERIFICATION'] },
+          status: 'PENDING_PAYMENT',
         },
       })
       return { attentionCount }
@@ -126,8 +126,8 @@ export async function registerAdminOrderRoutes(fastify) {
 
       const existing = await prisma.order.findUnique({ where: { id } })
       if (!existing) return reply.code(404).send({ error: 'Заказ не найден' })
-      if (existing.status !== 'DELIVERY_FEE_ADJUSTMENT') {
-        return reply.code(409).send({ error: 'Корректировка доставки доступна только в статусе DELIVERY_FEE_ADJUSTMENT' })
+      if (existing.status !== 'PENDING_PAYMENT' || existing.deliveryFeeLocked !== false) {
+        return reply.code(409).send({ error: 'Корректировка доставки доступна только пока стоимость не утверждена' })
       }
 
       const totalCents = existing.itemsSubtotalCents + parsed
@@ -136,7 +136,7 @@ export async function registerAdminOrderRoutes(fastify) {
         data: {
           deliveryFeeCents: parsed,
           totalCents,
-          status: 'PENDING_PAYMENT',
+          deliveryFeeLocked: true,
         },
       })
       return { item: updated }