feat: import F95 covers using personal encrypted sessions

frontend/src/uploads.tsx

@@ -24,6 +24,7 @@ interface UploadInput {
   title?: string;
   description?: string;
   tags?: string[];
+  coverHash?: string | null;
 }
 
 interface UploadContextValue {
@@ -55,6 +56,7 @@ export function UploadProvider({ children }: { children: ReactNode }) {
           const game = await api.post<Game>("/api/games", {
             title: input.title?.trim() || file.name.replace(/\.(zip|7z|rar|tar.*)$/i, ""),
             description: input.description ?? "", tags: input.tags ?? [],
+            cover_hash: input.coverHash ?? null,
           });
           gameId = game.id;
         }