feat(characters): support character-scoped conversations

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

@@ -12,6 +12,7 @@ import {
 import { useCachedChatMediaUrl } from "@/lib/chat/use_cached_chat_media_url";
 
 export interface ChatMediaImageProps {
+  characterId: string;
   messageId?: string;
   remoteUrl: string;
   alt?: string;
@@ -28,6 +29,7 @@ export interface ChatMediaImageProps {
 }
 
 export function ChatMediaImage({
+  characterId,
   messageId,
   remoteUrl,
   alt = "",
@@ -45,6 +47,7 @@ export function ChatMediaImage({
   const [errorSrc, setErrorSrc] = useState<string | null>(null);
   const { mediaUrl, isUsingCachedMedia, reportMediaError } =
     useCachedChatMediaUrl({
+      characterId,
       messageId,
       remoteUrl,
       kind: "image",