feat(gateway): implement remote service forwarding for distributed git operations

- Add remote client functions for archive, blame, and branch services
- Implement fallback logic to forward requests to remote storage nodes
- Add logging for forwarding operations with route details
- Update Cargo.lock with new dependencies including ractor cluster libraries
- Extend .gitignore with IDE and build system files
- Remove outdated comments from bare repository implementation

actor/mod.rs

@@ -0,0 +1,7 @@
+pub mod message;
+pub mod handler;
+pub mod server;
+
+pub use handler::{GitNodeActor, GitNodeArgs, start_node_actor, get_cluster_nodes, get_category_members, route_group_for, list_all_groups};
+pub use server::init_actor_cluster;
+pub use message::{GitNodeMessage, NodeHealth, RepoActorMessage, RouteDecision};