fix(chat): stabilize message identities

src/app/chat/components/chat-media-image.tsx

@@ -13,7 +13,7 @@ import { useCachedChatMediaUrl } from "@/lib/chat/use_cached_chat_media_url";
 
 export interface ChatMediaImageProps {
   characterId: string;
-  messageId?: string;
+  remoteMessageId?: string;
   remoteUrl: string;
   alt?: string;
   className?: string;
@@ -30,7 +30,7 @@ export interface ChatMediaImageProps {
 
 export function ChatMediaImage({
   characterId,
-  messageId,
+  remoteMessageId,
   remoteUrl,
   alt = "",
   className,
@@ -48,7 +48,7 @@ export function ChatMediaImage({
   const { mediaUrl, isUsingCachedMedia, reportMediaError } =
     useCachedChatMediaUrl({
       characterId,
-      messageId,
+      messageId: remoteMessageId,
       remoteUrl,
       kind: "image",
     });