Remove unused dead code (#288)

Author: danyi1212

pdp-server/src/api/authzen/errors.rs

@@ -3,7 +3,6 @@ use axum::{
     response::{IntoResponse, Response},
 };
 use serde::{Deserialize, Serialize};
-use utoipa::ToSchema;
 
 /// AuthZen error codes as defined in the specification
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
@@ -35,14 +34,6 @@ pub struct AuthZenError {
     pub message: String,
 }
 
-/// AuthZen error details for OpenAPI documentation only
-/// This is NOT used in actual responses, only for OpenAPI schema generation
-#[derive(Debug, Serialize, Deserialize, ToSchema)]
-pub struct AuthZenErrorDetails {
-    pub code: String,
-    pub message: String,
-}
-
 impl AuthZenError {
     /// Create a new AuthZen error
     pub fn new(code: AuthZenErrorCode, message: impl Into<String>) -> Self {

pdp-server/src/cache/mod.rs

@@ -1,5 +1,5 @@
 use log::error;
-use serde::{de::DeserializeOwned, Deserialize, Serialize};
+use serde::{de::DeserializeOwned, Serialize};
 use thiserror::Error;
 
 pub mod memory;
@@ -19,12 +19,6 @@ pub enum CacheError {
     Config(String),
 }
 
-#[derive(Debug, Serialize, Deserialize)]
-struct CacheValue {
-    data: String,
-    expires_at: u64,
-}
-
 /// Cache trait defining the interface for all cache implementations.
 ///
 /// This trait represents the contract that all cache backends must fulfill.

pdp-server/src/opa_client/user_permissions.rs

@@ -127,6 +127,7 @@ pub struct UserPermissionsResult {
 }
 // Define a newtype wrapper for HashMap<String, UserPermissionsResult>
 #[derive(Debug, Serialize, Deserialize, Clone, PartialEq, ToSchema)]
+#[allow(dead_code)] // Used for OpenAPI documentation generation
 pub struct UserPermissionsResults(pub HashMap<String, UserPermissionsResult>);
 
 // Implement IntoResponse for our newtype