fix(rig): remove unused imports and add feature gating to resolve warnings

Author: jruokola

crates/codegraph-mcp-rig/src/agent/react.rs

@@ -1,12 +1,20 @@
 // ABOUTME: ReAct agent implementations for different providers
 
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use crate::agent::api::{AgentEvent, RigAgentTrait};
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use crate::tools::GraphToolFactory;
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use anyhow::{anyhow, Result};
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use async_trait::async_trait;
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use codegraph_mcp_core::context_aware_limits::ContextTier;
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use futures::stream;
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use futures::Stream;
+#[cfg(any(feature = "openai", feature = "anthropic", feature = "ollama", feature = "xai"))]
 use std::pin::Pin;
 
 /// OpenAI-based Rig agent

crates/codegraph-mcp-rig/src/agent/reflexion.rs

@@ -4,7 +4,7 @@ use crate::agent::api::{AgentEvent, RigAgentTrait};
 use anyhow::Result;
 use async_trait::async_trait;
 use codegraph_mcp_core::context_aware_limits::ContextTier;
-use futures::stream::{self, StreamExt};
+use futures::stream;
 use futures::Stream;
 use std::pin::Pin;