fix(assistant): a book page card draws the page after as the server's trial made it

The Studio drew the page after a held edit or cover change by running the
card's operations on its own book, which knows nothing of the journey's
photos, words and figures, so a caption from a photo, a text from an entry
or a map from the route came out differently or not at all. The card now
carries the page the server's trial made with the full context, read with
the book's schema and within the card's size, and the Studio draws it while
its book stands at the version the trial ran on. A book that moved on, a
card from before and a page too heavy to carry still run the operations on
the book on screen, the book the change will run on. The receipt leaves the
page out, since an applied change is drawn from the book itself.

client/src/components/Studio/StudioAssistantPanel.tsx

@@ -133,7 +133,16 @@ export function StudioPageStage({ assistant }: { assistant: StudioAssistant }) {
   );
 }
 
-export default function StudioAssistantPanel({ assistant, title }: { assistant: StudioAssistant; title: string }) {
+export default function StudioAssistantPanel({
+  assistant,
+  title,
+  bookVersion,
+}: {
+  assistant: StudioAssistant;
+  title: string;
+  /** The stored book's version the open book stands on, for the book's cards in the chat. */
+  bookVersion?: number | null;
+}) {
   const { t } = useTranslation();
   const navigate = useNavigate();
   const thread = useAssistantThread(assistant.chatKey);
@@ -174,6 +183,7 @@ export default function StudioAssistantPanel({ assistant, title }: { assistant:
         variant="window"
         density="compact"
         onOpen={onOpen}
+        bookVersion={bookVersion}
       />
     </aside>
   );
@@ -198,8 +208,16 @@ export function StudioAssistantToggle({ assistant }: { assistant: StudioAssistan
 }
 
 /** The chat column at the end of the Studio's body, while it is open, named after the journey. */
-export function StudioAssistantColumn({ assistant, title }: { assistant: StudioAssistant; title?: string }) {
+export function StudioAssistantColumn({
+  assistant,
+  title,
+  bookVersion,
+}: {
+  assistant: StudioAssistant;
+  title?: string;
+  bookVersion?: number | null;
+}) {
   const { t } = useTranslation();
   if (!assistant.open) return null;
-  return <StudioAssistantPanel assistant={assistant} title={title || t('journey.title')} />;
+  return <StudioAssistantPanel assistant={assistant} title={title || t('journey.title')} bookVersion={bookVersion} />;
 }