fix clippy warnings

apps/api/src/services/auth/authentication.rs

@@ -14,6 +14,7 @@ use tokio::sync::RwLock;
 use crate::errors::service_error::ServiceError;
 
 // Number of requests between invalidation cache cleanups
+#[allow(dead_code)] // TODO: remove when used
 const INVALIDATE_CACHE_CLEANUP_INTERVAL_REQUESTS: usize = 100; // Cleanup every 100 for invalidation checks
 
 #[derive(Serialize, Deserialize, Clone)]
@@ -38,10 +39,15 @@ pub trait AuthenticationService: Send + Sync {
         token: &str,
         target_sub: Option<String>,
     ) -> Result<Option<Claims>, ServiceError>;
+    #[allow(dead_code)] // TODO: remove when used
     async fn parse_jwt(&self, token: &str) -> Result<Claims, ServiceError>;
+    #[allow(dead_code)] // TODO: remove when used
     async fn invalidate_jwt(&self, token: &str) -> Result<(), ServiceError>;
+    #[allow(dead_code)] // TODO: remove when used
     async fn refresh_jwt(&self, token: &str, duration_secs: u64) -> Result<String, ServiceError>;
+    #[allow(dead_code)] // TODO: remove when used
     async fn logout(&self, token: &str) -> Result<(), ServiceError>;
+    #[allow(dead_code)] // TODO: remove when used
     async fn cleanup_invalidation_cache(&self);
 }
 
@@ -54,7 +60,9 @@ struct InvalidationEntry {
 
 pub struct AuthenticationServiceImpl {
     secret: String,
+    #[allow(dead_code)] // TODO: remove when used
     invalidation_cache: Arc<RwLock<HashSet<InvalidationEntry>>>,
+    #[allow(dead_code)] // TODO: remove when used
     cache_cleanup_counter: Arc<RwLock<usize>>,
 }