Add booking create endpoint

src/main/kotlin/com/android/trisolarisserver/controller/BookingFlow.kt

@@ -5,6 +5,8 @@ import com.android.trisolarisserver.component.RoomBoardEvents
 import com.android.trisolarisserver.controller.dto.BookingCancelRequest
 import com.android.trisolarisserver.controller.dto.BookingCheckInRequest
 import com.android.trisolarisserver.controller.dto.BookingCheckOutRequest
+import com.android.trisolarisserver.controller.dto.BookingCreateRequest
+import com.android.trisolarisserver.controller.dto.BookingCreateResponse
 import com.android.trisolarisserver.controller.dto.BookingNoShowRequest
 import com.android.trisolarisserver.controller.dto.RoomStayPreAssignRequest
 import com.android.trisolarisserver.db.repo.BookingRepo
@@ -13,6 +15,7 @@ import com.android.trisolarisserver.models.booking.TransportMode
 import com.android.trisolarisserver.models.room.RoomStay
 import com.android.trisolarisserver.models.property.Role
 import com.android.trisolarisserver.repo.AppUserRepo
+import com.android.trisolarisserver.repo.PropertyRepo
 import com.android.trisolarisserver.repo.RoomRepo
 import com.android.trisolarisserver.repo.RoomStayRepo
 import com.android.trisolarisserver.security.MyPrincipal
@@ -37,9 +40,62 @@ class BookingFlow(
     private val roomRepo: RoomRepo,
     private val roomStayRepo: RoomStayRepo,
     private val appUserRepo: AppUserRepo,
+    private val propertyRepo: PropertyRepo,
     private val roomBoardEvents: RoomBoardEvents
 ) {
 
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    @Transactional
+    fun createBooking(
+        @PathVariable propertyId: UUID,
+        @AuthenticationPrincipal principal: MyPrincipal?,
+        @RequestBody request: BookingCreateRequest
+    ): BookingCreateResponse {
+        val actor = requireActor(propertyId, principal)
+        val property = propertyRepo.findById(propertyId).orElseThrow {
+            ResponseStatusException(HttpStatus.NOT_FOUND, "Property not found")
+        }
+
+        val expectedCheckInAt = parseOffset(request.expectedCheckInAt)
+            ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "expectedCheckInAt required")
+        val expectedCheckOutAt = parseOffset(request.expectedCheckOutAt)
+            ?: throw ResponseStatusException(HttpStatus.BAD_REQUEST, "expectedCheckOutAt required")
+        if (!expectedCheckOutAt.isAfter(expectedCheckInAt)) {
+            throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid date range")
+        }
+
+        val now = OffsetDateTime.now()
+        val booking = com.android.trisolarisserver.models.booking.Booking(
+            property = property,
+            status = BookingStatus.OPEN,
+            source = request.source?.trim().takeIf { !it.isNullOrBlank() } ?: "WALKIN",
+            expectedCheckinAt = expectedCheckInAt,
+            expectedCheckoutAt = expectedCheckOutAt,
+            transportMode = request.transportMode?.let {
+                val mode = parseTransportMode(it)
+                if (!isTransportModeAllowed(property, mode)) {
+                    throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Transport mode disabled")
+                }
+                mode
+            },
+            transportVehicleNumber = request.transportVehicleNumber,
+            adultCount = request.adultCount,
+            totalGuestCount = request.totalGuestCount,
+            notes = request.notes,
+            createdBy = actor,
+            updatedAt = now
+        )
+
+        val saved = bookingRepo.save(booking)
+        return BookingCreateResponse(
+            id = saved.id!!,
+            status = saved.status.name,
+            expectedCheckInAt = expectedCheckInAt.toString(),
+            expectedCheckOutAt = expectedCheckOutAt.toString()
+        )
+    }
+
     @PostMapping("/{bookingId}/check-in")
     @ResponseStatus(HttpStatus.CREATED)
     @Transactional