✨ (Cargo.toml): add signal-hook dependency for signal handling

♻️ (client_listener.rs): make ClientListener trait Send to allow cross-thread usage
✨ (main.rs): implement signal handling for graceful shutdown
♻️ (main.rs): refactor client creation to use Arc<Mutex> for shared state
♻️ (main.rs): add retry logic for persistent connection attempts
♻️ (subscription_listener.rs): make SubscriptionListener trait Send to allow cross-thread usage

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index a4354c3..1f3faaa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,5 +18,6 @@ reqwest = { version = "0", features = ["json", "stream"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = { version = "1" }
 serde_urlencoded = "0"
+signal-hook = "0"
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
 tokio-tungstenite = { version = "0", features = ["native-tls"] }