fix migration number

migrations/000066_create_notification_receivers_table.up.sql

@@ -0,0 +1,18 @@
+-- Notification receivers table (links a notification to a specific user)
+CREATE TABLE notification_receivers (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    notification_id UUID NOT NULL REFERENCES notifications(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    is_read BOOLEAN NOT NULL DEFAULT FALSE,
+    read_at TIMESTAMP WITH TIME ZONE,
+    is_deleted BOOLEAN NOT NULL DEFAULT FALSE,
+    deleted_at TIMESTAMP WITH TIME ZONE,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+-- Indexes
+CREATE INDEX idx_notification_receivers_notification_id ON notification_receivers(notification_id);
+CREATE INDEX idx_notification_receivers_user_id ON notification_receivers(user_id);
+CREATE INDEX idx_notification_receivers_user_unread ON notification_receivers(user_id, is_read) WHERE is_deleted = FALSE;
+CREATE UNIQUE INDEX idx_notification_receivers_unique ON notification_receivers(notification_id, user_id);