add see update

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

@@ -1,6 +1,7 @@
 package com.android.trisolarisserver.controller
 
 import com.android.trisolarisserver.component.PropertyAccess
+import com.android.trisolarisserver.component.RoomBoardEvents
 import com.android.trisolarisserver.controller.dto.RoomAvailabilityRangeResponse
 import com.android.trisolarisserver.controller.dto.RoomAvailabilityResponse
 import com.android.trisolarisserver.controller.dto.RoomBoardResponse
@@ -26,6 +27,7 @@ import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.ResponseStatus
 import org.springframework.web.bind.annotation.RestController
 import org.springframework.web.server.ResponseStatusException
+import org.springframework.web.servlet.mvc.method.annotation.SseEmitter
 import java.time.LocalDate
 import java.time.ZoneId
 import java.util.UUID
@@ -38,7 +40,8 @@ class Rooms(
     private val roomStayRepo: RoomStayRepo,
     private val propertyRepo: PropertyRepo,
     private val roomTypeRepo: RoomTypeRepo,
-    private val propertyUserRepo: PropertyUserRepo
+    private val propertyUserRepo: PropertyUserRepo,
+    private val roomBoardEvents: RoomBoardEvents
 ) {
 
     @GetMapping
@@ -88,6 +91,16 @@ class Rooms(
         return if (isAgentOnly(roles)) mapped.filter { it.status == RoomBoardStatus.FREE } else mapped
     }
 
+    @GetMapping("/board/stream")
+    fun roomBoardStream(
+        @PathVariable propertyId: UUID,
+        @AuthenticationPrincipal principal: MyPrincipal?
+    ): SseEmitter {
+        requirePrincipal(principal)
+        propertyAccess.requireMember(propertyId, principal!!.userId)
+        return roomBoardEvents.subscribe(propertyId)
+    }
+
     @GetMapping("/availability")
     fun roomAvailability(
         @PathVariable propertyId: UUID,
@@ -177,7 +190,9 @@ class Rooms(
             notes = request.notes
         )
 
-        return roomRepo.save(room).toRoomResponse()
+        val saved = roomRepo.save(room).toRoomResponse()
+        roomBoardEvents.emit(propertyId)
+        return saved
     }
 
     @PutMapping("/{roomId}")
@@ -208,7 +223,9 @@ class Rooms(
         room.maintenance = request.maintenance
         room.notes = request.notes
 
-        return roomRepo.save(room).toRoomResponse()
+        val saved = roomRepo.save(room).toRoomResponse()
+        roomBoardEvents.emit(propertyId)
+        return saved
     }
 
     private fun requirePrincipal(principal: MyPrincipal?) {