feat: enhance parser feedback mechanism for improved user guidance

Co-authored-by: Copilot <copilot@github.com>

charactergarden/frontend/src/App.tsx

@@ -47,6 +47,7 @@ type Snapshot = {
 type TurnResult = {
   narration: string;
   parser: string;
+  parser_feedback?: string;
   actions: Array<Record<string, unknown>>;
   accepted: Array<Record<string, unknown>>;
   rejected: Array<{ action: Record<string, unknown>; reason: string }>;
@@ -146,6 +147,9 @@ export default function App() {
           <section className="result-card">
             <h2>Latest result</h2>
             <p>{latest.narration}</p>
+            {latest.parser_feedback ? (
+              <p className="parser-hint">Parser guidance: {latest.parser_feedback}</p>
+            ) : null}
             <pre>{JSON.stringify({ actions: latest.actions, rejected: latest.rejected, latent: latest.latent_resolution }, null, 0)}</pre>
           </section>
         ) : null}