Tighten remote backend review diff

Author: afourniernv

crates/core/Cargo.toml

@@ -28,6 +28,7 @@ otel = [
     "dep:opentelemetry-http",
     "dep:opentelemetry-otlp",
     "dep:opentelemetry_sdk",
+    "dep:reqwest",
     "dep:rustls",
     "dep:tonic",
     "dep:web-sys",
@@ -43,6 +44,7 @@ openinference = [
     "dep:opentelemetry-http",
     "dep:opentelemetry-otlp",
     "dep:opentelemetry_sdk",
+    "dep:reqwest",
     "dep:rustls",
     "dep:tonic",
     "dep:web-sys",

crates/core/src/plugins/nemo_guardrails/remote.rs

@@ -36,11 +36,6 @@ use super::{NeMoGuardrailsConfig, RemoteBackendConfig, RequestDefaultsConfig};
 
 #[cfg(all(not(target_arch = "wasm32"), feature = "guardrails-remote"))]
 #[derive(Clone)]
-// PR 2 intentionally implements the first honest remote slice:
-// OpenAI chat requests, non-streaming + streaming execution, managed tool
-// input/output checks, broad request-defaults pass-through, and response
-// passthrough from the Guardrails server. The local backend remains out of
-// scope.
 struct RemoteBackendRuntime {
     endpoint: String,
     client: reqwest::Client,