Rename Brain and AI to Instruction and write BAWANA in capitals

The page now lives at /instruction; /brain and /perintah redirect there.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/pages/Results.tsx

@@ -111,7 +111,7 @@ function NoResults({ filtered, icon }: { filtered: boolean; icon: IconName }) {
       <span className="empty-icon"><Icon name={icon} /></span>
       <h3>{t('res.empty')}</h3>
       <p>{t('res.emptyCopy')}</p>
-      <Link className="btn light" to="/brain"><Icon name="plus" />{t('sch.newInstruction')}</Link>
+      <Link className="btn light" to="/instruction"><Icon name="plus" />{t('sch.newInstruction')}</Link>
     </div>
   )
 }