[model-gateway] add anthropic message api spec (#14834)

sgl-model-gateway/src/core/worker_registry.rs

@@ -7,8 +7,10 @@ use std::sync::{Arc, RwLock};
 use dashmap::DashMap;
 use uuid::Uuid;
 
-use crate::core::{ConnectionMode, RuntimeType, Worker, WorkerType};
+use crate::{
-use crate::observability::metrics::RouterMetrics;
+    core::{ConnectionMode, RuntimeType, Worker, WorkerType},
+    observability::metrics::RouterMetrics,
+};
 
 /// Unique identifier for a worker
 #[derive(Debug, Clone, Hash, Eq, PartialEq)]

sgl-model-gateway/src/protocols/mod.rs

@@ -9,6 +9,7 @@ pub mod completion;
 pub mod embedding;
 pub mod event_types;
 pub mod generate;
+pub mod messages;
 pub mod rerank;
 pub mod responses;
 pub mod sampling_params;