fix(server): added chain_id check and covered check_shared_constraints with unit tests

server/crates/arbiter-server/Cargo.toml

@@ -65,4 +65,5 @@ mutants.workspace = true
 
 [dev-dependencies]
 insta = "1.46.3"
+rstest.workspace = true
 test-log = { version = "0.2", default-features = false, features = ["trace"] }