structural refactor and codebase improvements

crates/composition/src/lib.rs

@@ -0,0 +1,11 @@
+pub mod build;
+pub mod factory;
+pub mod repositories;
+
+pub use build::{build_deps, build_worker_deps};
+pub use factory::{DatabaseOutput, DbPool};
+pub use repositories::Repositories;
+
+#[cfg(test)]
+#[path = "tests/build.rs"]
+mod build_tests;