Render action buttons based on OutcomeType enum

[QwertyNora]

Update the UI to render different action buttons according to the returned value of the OutcomeType enum. For example:

• If OutcomeType is Success, only render the "Continue Story" button
• If OutcomeType is another value (e.g., Failure or similar), render both "Try again" and "Continue Story" buttons
• Support all applicable OutcomeType values and adjust buttons accordingly

This improves the UX by providing context-sensitive actions based on user progress or result. Please coordinate with backend if enum is modified.

AC:

• Dynamically render buttons per OutcomeType
• Document the mapping in code comments for all expected enum values

Related context: [OutcomeType enum handling]