feat: show secret on admin detail page

data/www/admin/details.html

@@ -37,6 +37,7 @@
         </svg>
         {{challenge.solution}}
       </p>
+      <code>{{secret}}</code>
     </div>
   </div>
 </div>

src/meta/admin.rs

@@ -58,6 +58,7 @@ async fn details(
                 ..default_context(),
                 ..context!(
                 challenge => challenge,
+                secret => vault.secret(),
                 title => "Wooly-Vault Admin Interface",
                 contestants => vault.contestants().await.iter().collect::<Vec<_>>(),
                 winners => vault.winners().await.iter().collect::<Vec<_>>(),

src/vault.rs

@@ -17,7 +17,7 @@ use tokio::sync::Mutex;
 /// This type is used to share a [`Vault`] instance across multiple parts of the application.
 pub type VaultRef = Arc<Vault>;
 
-#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
+#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, PartialOrd, Ord)]
 pub struct Contestant {
     ip: IpAddr,
 }