Add guest create endpoint

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

@@ -1,6 +1,7 @@
 package com.android.trisolarisserver.controller
 
 import com.android.trisolarisserver.component.PropertyAccess
+import com.android.trisolarisserver.controller.dto.GuestCreateRequest
 import com.android.trisolarisserver.controller.dto.GuestResponse
 import com.android.trisolarisserver.controller.dto.GuestVehicleRequest
 import com.android.trisolarisserver.models.booking.Guest
@@ -15,6 +16,7 @@ import org.springframework.http.HttpStatus
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.*
 import org.springframework.web.server.ResponseStatusException
+import java.time.OffsetDateTime
 import java.util.UUID
 
 @RestController
@@ -28,6 +30,38 @@ class Guests(
     private val guestRatingRepo: GuestRatingRepo
 ) {
 
+    @PostMapping
+    @ResponseStatus(HttpStatus.CREATED)
+    fun createGuest(
+        @PathVariable propertyId: UUID,
+        @AuthenticationPrincipal principal: MyPrincipal?,
+        @RequestBody request: GuestCreateRequest
+    ): GuestResponse {
+        requireMember(propertyAccess, propertyId, principal)
+        val property = requireProperty(propertyRepo, propertyId)
+
+        val phone = request.phoneE164.trim()
+        if (phone.isBlank()) {
+            throw ResponseStatusException(HttpStatus.BAD_REQUEST, "phoneE164 required")
+        }
+        val existing = guestRepo.findByPropertyIdAndPhoneE164(propertyId, phone)
+        if (existing != null) {
+            throw ResponseStatusException(HttpStatus.CONFLICT, "Guest already exists")
+        }
+
+        val now = OffsetDateTime.now()
+        val guest = Guest(
+            property = property,
+            phoneE164 = phone,
+            name = request.name?.trim()?.ifBlank { null },
+            nationality = request.nationality?.trim()?.ifBlank { null },
+            addressText = request.addressText?.trim()?.ifBlank { null },
+            updatedAt = now
+        )
+        guestRepo.save(guest)
+        return setOf(guest).toResponse(guestVehicleRepo, guestRatingRepo).first()
+    }
+
     @GetMapping("/search")
     fun search(
         @PathVariable propertyId: UUID,

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

@@ -49,6 +49,13 @@ data class GuestResponse(
     val averageScore: Double?
 )
 
+data class GuestCreateRequest(
+    val phoneE164: String,
+    val name: String? = null,
+    val nationality: String? = null,
+    val addressText: String? = null
+)
+
 data class GuestVehicleRequest(
     val vehicleNumber: String,
     val bookingId: UUID