refactor: introduce trait-based architecture for CCTP v1 bridge

Author: suchapalaver

Cargo.lock

@@ -28,6 +28,7 @@ alloy-provider = { version = "1.0.41", default-features = false, features = [
 alloy-rpc-types = "1.0.42"
 alloy-sol-types = { version = "1.4.0", features = ["json"] }
 alloy-transport = { version = "1.0.41", default-features = false }
+async-trait = "0.1"
 bon = "3.8.1"
 reqwest = { version = "0.12.23", features = ["json"] }
 serde = { version = "1.0.228", features = ["derive"] }