5ddb792f0f67e664d8d949f58b185eaabd70658b
- Fix tokio runtime panic by spawning a dedicated Tokio runtime thread in CoreController. - Add central log_msg utility in src/lib.rs for debugging. - Add instrumentation/logs to join, leave, and gossip events in src/network/gossip.rs. - Add test_net.rs bin for testing gossip loopback sync. - Use std::sync::Mutex in IrohGossipState to resolve Tokio block-in-async panics.