Merge PR #669: align GPT-5.6 and Codex request protocols

apps/aether-gateway/src/state/app.rs

@@ -377,6 +377,7 @@ pub struct AppState {
     pub(crate) upstream_target_admission: Arc<crate::upstream_admission::UpstreamTargetAdmission>,
     pub(crate) distributed_request_gate: Option<Arc<RuntimeSemaphore>>,
     pub(crate) client: reqwest::Client,
+    pub(crate) owner_forward_client: reqwest::Client,
     pub(crate) auth_context_cache: Arc<AuthContextCache>,
     pub(crate) auth_snapshot_cache: Arc<AuthSnapshotCache>,
     pub(crate) admin_security_blacklist_cache: Arc<ValueCache<String, bool>>,