fix: restore telemetry merge build compatibility

rust/crates/api/src/providers/anthropic.rs

@@ -6,6 +6,7 @@ use runtime::{
     OAuthTokenExchangeRequest,
 };
 use serde::Deserialize;
+use telemetry::SessionTracer;
 
 use crate::error::ApiError;
 
@@ -194,6 +195,11 @@ impl AnthropicClient {
         self
     }
 
+    #[must_use]
+    pub fn with_session_tracer(self, _session_tracer: SessionTracer) -> Self {
+        self
+    }
+
     #[must_use]
     pub fn auth_source(&self) -> &AuthSource {
         &self.auth