fix: restore complete admin feature dependencies

src/app/admin/rooms/[id]/furni/page.tsx

@@ -17,13 +17,13 @@ export default async function RoomFurniPage({
   const room = await loadRoom(id)
 
   // Load items in this room. items.item_id → items_base.id
-  const items = await prisma.item.findMany({
+  const items = await prisma.items.findMany({
     where: { roomId: room.id },
     orderBy: { id: 'desc' },
   })
 
   // Resolve item bases
-  const baseIds = Array.from(new Set(items.map((i) => i.itemId)))
+  const baseIds = Array.from(new Set(items.map((i) => i.itemId).filter((id): id is number => id !== null)))
   const bases = baseIds.length
     ? await prisma.itemsBase.findMany({
         where: { id: { in: baseIds } },
@@ -43,10 +43,10 @@ export default async function RoomFurniPage({
   const userMap = new Map(users.map((u) => [u.id, u.username]))
 
   const rows = items.map((i) => {
-    const base = baseMap.get(i.itemId)
+    const base = i.itemId === null ? undefined : baseMap.get(i.itemId)
     return {
       id: i.id,
-      baseId: i.itemId,
+      baseId: i.itemId ?? 0,
       name: base?.publicName || base?.itemName || `#${i.itemId}`,
       itemName: base?.itemName ?? '',
       type: base?.type ?? '?',
@@ -74,7 +74,7 @@ export default async function RoomFurniPage({
         room={{
           id: room.id,
           name: room.name,
-          ownerUsername: room.owner?.username ?? room.owner_name,
+          ownerUsername: room.owner?.username ?? room.ownerName,
         }}
         items={rows}
         canEdit={session.user.rank >= 4}

src/app/admin/rooms/_lib/load-room.ts

@@ -5,11 +5,16 @@ export async function loadRoom(id: string) {
   const roomId = parseInt(id, 10)
   if (Number.isNaN(roomId)) notFound()
 
-  const room = await prisma.room.findUnique({
+  const room = await prisma.rooms.findUnique({
     where: { id: roomId },
-    include: { owner: { select: { id: true, username: true, look: true } } },
   })
 
   if (!room) notFound()
-  return room
+  const owner = room.ownerId > 0
+    ? await prisma.user.findUnique({
+        where: { id: room.ownerId },
+        select: { id: true, username: true, look: true },
+      })
+    : null
+  return { ...room, owner }
 }

src/app/admin/rooms/edit/[id]/page.tsx

@@ -42,7 +42,7 @@ export default async function RoomEditPage({
               </Badge>
             </h1>
             <p className="text-sm text-muted-foreground">
-              Owner: {room.owner.username} &middot; {room.users}/{room.usersMax} users
+              Owner: {room.owner?.username ?? room.ownerName} &middot; {room.users}/{room.usersMax} users
             </p>
           </div>
         </div>
@@ -61,7 +61,7 @@ export default async function RoomEditPage({
           state: room.state,
           usersMax: room.usersMax,
           users: room.users,
-          ownerName: room.owner.username,
+          ownerName: room.owner?.username ?? room.ownerName,
         }}
       />
     </div>

src/app/admin/rooms/show/[id]/page.tsx

@@ -49,12 +49,13 @@ export default async function RoomShowPage({
                 <Users className="h-4 w-4 text-muted-foreground" />
                 <span className="font-medium">{room.users}</span> / {room.usersMax} users
               </span>
-              <Link
-                href={`/admin/users/show/${room.owner.id}`}
-                className="text-primary hover:underline"
-              >
-                Owner: {room.owner.username}
-              </Link>
+              {room.owner ? (
+                <Link href={`/admin/users/show/${room.owner.id}`} className="text-primary hover:underline">
+                  Owner: {room.owner.username}
+                </Link>
+              ) : (
+                <span>Owner: {room.ownerName}</span>
+              )}
             </div>
           </div>
           <div className="flex gap-2">