Clean up architecture

brittle-core/Cargo.toml

@@ -4,19 +4,15 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+brittle-model = { path = "../brittle-model" }
 chrono = { version = "0.4", features = ["serde"] }
 git2 = { version = "0.20", features = ["vendored-libgit2"] }
 serde = { version = "1", features = ["derive"] }
 sha2 = "0.10"
 thiserror = "2"
 toml = "0.8"
-ureq = "2"
 uuid = { version = "1", features = ["v7", "serde"] }
 
-[[bin]]
-name = "brittle-seed"
-path = "src/bin/seed.rs"
-
 [dev-dependencies]
 serde_json = "1"
 tempfile = "3"