Add bulk check-in with per-room rates

src/main/kotlin/com/android/trisolarisserver/controller/dto/BookingDtos.kt

@@ -13,6 +13,22 @@ data class BookingCheckInRequest(
     val notes: String? = null
 )
 
+data class BookingCheckInStayRequest(
+    val roomId: UUID,
+    val checkInAt: String? = null,
+    val checkOutAt: String? = null,
+    val nightlyRate: Long? = null,
+    val rateSource: String? = null,
+    val ratePlanCode: String? = null,
+    val currency: String? = null
+)
+
+data class BookingBulkCheckInRequest(
+    val stays: List<BookingCheckInStayRequest>,
+    val transportMode: String? = null,
+    val notes: String? = null
+)
+
 data class BookingCreateRequest(
     val source: String? = null,
     val expectedCheckInAt: String,