Two changes from v2: a light green canvas, always — and the flow is no longer one column. Blocks that genuinely run in parallel now sit side by side, and the lanes are computed from the data's own fork edges, never hand-placed: the human queue beside the repair batch, the baseline audit beside the storytelling read. Same rule as before — two levels visible, tap a block to step in.
Tap any block with ↳ enter to open it; the breadcrumb and the phone's back button walk back up. Notes on any block welcome.