- add: service discovery protocol using consul

auth-service/Cargo.toml

@@ -5,6 +5,7 @@ edition = "2021"
 
 [features]
 mocks = []
+consul = []
 
 [dependencies]
 tokio = { version = "1.41.1", features = ["full"] }
@@ -20,6 +21,10 @@ prost-types = "0.13.3"
 chrono = { version = "0.4.38", features = ["serde"] }
 async-trait = "0.1.83"
 mockall = "0.13.1"
+rand = "0.8.5"
+warp = "0.3.7"
+reqwest = { version = "0.12.9", features = ["json"] }
+consul = "0.4.2"
 
 [build-dependencies]
 tonic-build = "0.12.3"