Typed-Feel Client

Write createTypedClient(fetchImpl) where every method validates BEFORE returning: - getTask(id) — fetches /tasks/{id}; if the body passes isTaskDTO return { ok: true, task }; a 404 returns { ok: false, reason: "not-found" }; a malformed body returns { ok: false, reason: "invalid" } - listTasks() — fetches /tasks; valid list → { ok: true, tasks }; malformed → { ok: false, reason: "invalid" } - the fake fetchImpl(url) returns { ok, status, json: async () => body }

Difficulty: intermediate