feat: unify creation entry templates

src/components/big-fish-creation/BigFishAgentWorkspace.tsx

@@ -26,6 +26,7 @@ type BigFishAgentWorkspaceProps = {
   onBack: () => void;
   onSubmitMessage: (payload: SendBigFishMessageRequest) => void;
   onExecuteAction: (payload: ExecuteBigFishActionRequest) => void;
+  showBackButton?: boolean;
 };
 
 const BIG_FISH_AGENT_THEME: CreationAgentTheme = {
@@ -87,6 +88,7 @@ export function BigFishAgentWorkspace({
   onBack,
   onSubmitMessage,
   onExecuteAction,
+  showBackButton = true,
 }: BigFishAgentWorkspaceProps) {
   return (
     <CreationAgentWorkspace
@@ -100,6 +102,7 @@ export function BigFishAgentWorkspace({
       isBusy={isBusy}
       error={error}
       quickActions={createCreationAgentChatQuickActions()}
+      showBackButton={showBackButton}
       onBack={onBack}
       onSubmitText={(text) => {
         onSubmitMessage(