Contract-suite scaffold: alkstore-contract-suite crate + ADR-022 (suite layout decision), engine dev-dep edges (ADR-017 §4.2 discharged, ADR-012 §2 mirror)

alkstore-postgres/Cargo.toml

@@ -9,4 +9,7 @@ repository.workspace = true
 alkstore = { version = "0.1", path = "../alkstore" }
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }
 tokio-postgres = "0.7"
-deadpool-postgres = "0.14"
+deadpool-postgres = "0.14"
+
+[dev-dependencies]
+alkstore-contract-suite = { path = "../alkstore-contract-suite" }