feat: MCP support for agentic CLI providers (#6972)

Signed-off-by: Adrian Cole <adrian@tetrate.io>

crates/goose-server/src/routes/session.rs

@@ -11,7 +11,6 @@ use axum::{
 };
 use goose::agents::ExtensionConfig;
 use goose::recipe::Recipe;
-use goose::session::extension_data::ExtensionState;
 use goose::session::session_manager::SessionInsights;
 use goose::session::{EnabledExtensionsState, Session};
 use serde::{Deserialize, Serialize};
@@ -481,10 +480,10 @@ async fn get_session_extensions(
         .await
         .map_err(|_| StatusCode::NOT_FOUND)?;
 
-    // Try to get session-specific extensions, fall back to global config
-    let extensions = EnabledExtensionsState::from_extension_data(&session.extension_data)
-        .map(|state| state.extensions)
-        .unwrap_or_else(goose::config::get_enabled_extensions);
+    let extensions = EnabledExtensionsState::extensions_or_default(
+        Some(&session.extension_data),
+        goose::config::Config::global(),
+    );
 
     Ok(Json(SessionExtensionsResponse { extensions }))
 }