fix: reviews — correct pending/archive logic, rejected_at field, stats, reply email

- Migration 085: add rejected_at to reviews
- pending = !isPublic && !reply && !rejectedAt
- archived = isPublic || reply || rejectedAt
- Stats: avgRating/NPS from all reviews; 'В архиве' = archived count
- sendReply: no longer sets isPublic=true on negative reviews
- reject: sets rejected_at=NOW() (distinct from pending)
- restore: clears rejected_at (now actually works)
- Badge 'Отклонён' for rejected reviews, opacity-60

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/lib/api.ts

@@ -482,7 +482,7 @@ export const api = {
     list: (slug: string) =>
       req<ReviewApi[]>('GET', `/api/hotels/${slug}/reviews`),
 
-    update: (slug: string, id: string, data: { reply?: string; isPublic?: boolean }) =>
+    update: (slug: string, id: string, data: { reply?: string; isPublic?: boolean; rejected?: boolean }) =>
       req<ReviewApi>('PATCH', `/api/hotels/${slug}/reviews/${id}`, data),
   },
 
@@ -1874,6 +1874,7 @@ export interface ReviewApi {
   reply: string | null
   repliedAt: string | null
   isPublic: boolean
+  rejectedAt: string | null
   roomNumber: string | null
   bookingSource: string | null
   createdAt: string