feat(api): update rust deps, move /private/meta endpoint to rust-api

services/api/src/error.rs

@@ -0,0 +1,29 @@
+use axum::http::StatusCode;
+use std::fmt;
+
+#[derive(Debug)]
+pub struct PKError {
+    pub response_code: StatusCode,
+    pub json_code: i32,
+    pub message: &'static str,
+}
+
+impl fmt::Display for PKError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{:?}", self)
+    }
+}
+
+impl std::error::Error for PKError {}
+
+macro_rules! define_error {
+    ( $name:ident, $response_code:expr, $json_code:expr, $message:expr ) => {
+        const $name: PKError = PKError {
+            response_code: $response_code,
+            json_code: $json_code,
+            message: $message,
+        };
+    };
+}
+
+define_error! { GENERIC_BAD_REQUEST, StatusCode::BAD_REQUEST, 0, "400: Bad Request" }