feat: add temporary sidebar share opinion prompt

Adds a dialog with call booking and survey actions for user feedback
Shows a one-time sidebar toast prompting users to share what’s useful or missing
Adds localized copy for the new feedback entry points

packages/ui/src/components/session/sidebar/SidebarFooter.tsx

@@ -9,6 +9,7 @@ type Props = {
   onOpenShortcuts: () => void;
   onOpenAbout: () => void;
   onOpenUpdate: () => void;
+  onOpenShareOpinion: () => void;
   showRuntimeButtons?: boolean;
   showUpdateButton?: boolean;
 };
@@ -20,6 +21,7 @@ export function SidebarFooter({
   onOpenShortcuts,
   onOpenAbout,
   onOpenUpdate,
+  onOpenShareOpinion,
   showRuntimeButtons = true,
   showUpdateButton = true,
 }: Props): React.ReactNode {
@@ -65,7 +67,17 @@ export function SidebarFooter({
         >
           {t('sessions.sidebar.footer.actions.update')}
         </Button>
-      ) : null}
+      ) : (
+        <Button
+          type="button"
+          variant="default"
+          size="xs"
+          className="ml-auto border-[var(--primary-base)]/15 bg-[var(--primary-base)]/5 text-[var(--primary-base)]/60 hover:bg-[var(--primary-base)]/10 hover:text-[var(--primary-base)]/75"
+          onClick={onOpenShareOpinion}
+        >
+          {t('sessions.sidebar.footer.actions.shareOpinion')}
+        </Button>
+      )}
     </div>
   );
 }