feat: Russian market channels — Яндекс, Островок, Суточно, Авито, Bronevik, 101hotels + role-based sidebar

backend/migrations/036_channels_ru.sql

@@ -0,0 +1,31 @@
+-- Replace old channel constraint with Russian market channels
+ALTER TABLE channels DROP CONSTRAINT IF EXISTS channels_name_check;
+ALTER TABLE channels ADD CONSTRAINT channels_name_check
+  CHECK (name IN (
+    'booking_com',
+    'yandex_travel',
+    'ostrovok',
+    'sutochno',
+    'avito',
+    'bronevik',
+    'hotels101',
+    'onetwotrip'
+  ));
+
+-- Remove old non-RU channels from all hotels
+DELETE FROM channels WHERE name IN ('airbnb', 'expedia', 'vrbo');
+
+-- Add new Russian channels for all existing hotels (skip if already exists)
+INSERT INTO channels (hotel_id, name)
+SELECT h.id, c.name
+FROM hotels h
+CROSS JOIN (VALUES
+  ('yandex_travel'),
+  ('ostrovok'),
+  ('sutochno'),
+  ('avito'),
+  ('bronevik'),
+  ('hotels101'),
+  ('onetwotrip')
+) AS c(name)
+ON CONFLICT (hotel_id, name) DO NOTHING;