feat: introduce ApiError for improved error handling in upstream routes

apps/api/src/errors/api_error.rs

@@ -0,0 +1,21 @@
+use axum::response::IntoResponse;
+
+use crate::errors::service_error::ServiceError;
+
+pub enum ApiError {
+    ServiceError(ServiceError),
+}
+
+impl From<ServiceError> for ApiError {
+    fn from(err: ServiceError) -> Self {
+        ApiError::ServiceError(err)
+    }
+}
+
+impl IntoResponse for ApiError {
+    fn into_response(self) -> axum::response::Response {
+        match self {
+            ApiError::ServiceError(service_error) => service_error.into_response(),
+        }
+    }
+}