Add ordered categories for room images

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

@@ -47,7 +47,7 @@ class RoomImages(
         requirePrincipal(principal)
         propertyAccess.requireMember(propertyId, principal!!.userId)
         ensureRoom(propertyId, roomId)
-        return roomImageRepo.findByRoomIdOrderByCreatedAtDesc(roomId)
+        return roomImageRepo.findByRoomIdOrdered(roomId)
             .map { it.toResponse(publicBaseUrl) }
     }
 
@@ -57,7 +57,9 @@ class RoomImages(
         @PathVariable propertyId: UUID,
         @PathVariable roomId: UUID,
         @AuthenticationPrincipal principal: MyPrincipal?,
-        @RequestParam("file") file: MultipartFile
+        @RequestParam("file") file: MultipartFile,
+        @RequestParam(required = false) sortOrder: Int?,
+        @RequestParam(required = false) category: String?
     ): RoomImageResponse {
         requirePrincipal(principal)
         propertyAccess.requireMember(propertyId, principal!!.userId)
@@ -79,7 +81,9 @@ class RoomImages(
             originalPath = stored.originalPath,
             thumbnailPath = stored.thumbnailPath,
             contentType = stored.contentType,
-            sizeBytes = stored.sizeBytes
+            sizeBytes = stored.sizeBytes,
+            sortOrder = sortOrder,
+            category = category
         )
         return roomImageRepo.save(image).toResponse(publicBaseUrl)
     }
@@ -134,6 +138,8 @@ private fun RoomImage.toResponse(baseUrl: String): RoomImageResponse {
         thumbnailUrl = "$baseUrl/properties/${property.id}/rooms/${room.id}/images/$id/file?size=thumb",
         contentType = contentType,
         sizeBytes = sizeBytes,
+        sortOrder = sortOrder,
+        category = category,
         createdAt = createdAt.toString()
     )
 }

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

@@ -38,6 +38,8 @@ data class RoomImageResponse(
     val thumbnailUrl: String,
     val contentType: String,
     val sizeBytes: Long,
+    val sortOrder: Int?,
+    val category: String?,
     val createdAt: String
 )
 

src/main/kotlin/com/android/trisolarisserver/models/room/RoomImage.kt

@@ -33,6 +33,12 @@ class RoomImage(
     @Column(name = "size_bytes", nullable = false)
     var sizeBytes: Long,
 
+    @Column(name = "sort_order")
+    var sortOrder: Int? = null,
+
+    @Column
+    var category: String? = null,
+
     @Column(name = "created_at", nullable = false, columnDefinition = "timestamptz")
     val createdAt: OffsetDateTime = OffsetDateTime.now()
 )

src/main/kotlin/com/android/trisolarisserver/repo/RoomImageRepo.kt

@@ -1,10 +1,20 @@
 package com.android.trisolarisserver.repo
 
 import com.android.trisolarisserver.models.room.RoomImage
+import org.springframework.data.jpa.repository.Query
+import org.springframework.data.repository.query.Param
 import org.springframework.data.jpa.repository.JpaRepository
 import java.util.UUID
 
 interface RoomImageRepo : JpaRepository<RoomImage, UUID> {
-    fun findByRoomIdOrderByCreatedAtDesc(roomId: UUID): List<RoomImage>
+    @Query(
+        """
+        select ri
+        from RoomImage ri
+        where ri.room.id = :roomId
+        order by (ri.sortOrder is null), ri.sortOrder asc, ri.createdAt desc
+        """
+    )
+    fun findByRoomIdOrdered(@Param("roomId") roomId: UUID): List<RoomImage>
     fun findByIdAndRoomIdAndPropertyId(id: UUID, roomId: UUID, propertyId: UUID): RoomImage?
 }