04 — Random Draw

What to build: The flagship feature. Each List has a draw control. Triggering it computes the Next Step of every open top-level Task in that List — a Task with no open Subtasks is its own Next Step; otherwise recurse into the topmost open Subtask — and picks one uniformly at random, presenting it to the user. Every open top-level Task contributes exactly one candidate, so a large project and a one-liner have equal odds.

Blocked by: 03 — Subtasks.

Status: done (commit 412c767, 2026-08-04)

☐ Draw control is available on each List and works on phone and desktop
☐ The candidate pool is exactly the Next Steps of open top-level Tasks (per CONTEXT.md definitions)
☐ A Task whose Subtasks are all completed is drawable itself
☐ Drawing from a List with no open Tasks is handled gracefully
☐ The drawn Task is shown with enough context (ancestor chain) to know what it belongs to
☐ The user can complete the drawn Task directly from the draw result, or draw again
☐ Tests verify pool membership for nested scenarios and uniform selection over top-level tasks