feat(conventional): initial implementation

`@websnacksjs/conventional` is a cli program which can be used with
`husky` & git hooks to enforce that commit messages adhere to the
conventional commits standard.

packages/conventional/src/lib/index.ts

@@ -0,0 +1,3 @@
+export type * from "./config.js";
+export { defineConfig } from "./config.js";
+export type * from "./types.js";