feat(cli): the board reads what actually ran #651

As a developer returning to a project
I want the board to show what actually ran, not only what was declared
So that I recover the thread without opening folders or paying an agent to summarise state that is already written down

Acceptance

• A feature shows its steps in the order they ran, with the duration of each.
• A step that ran several times appears several times, not merged.
• The originating ticket is shown, resolved through the identity file's upward link.
• Work with no task attachment is reachable, not hidden.
• The board keeps working on a project that has no run journal at all, degrading to what it shows today.
• No token or cost figure appears: they are not on disk, and the board reads only the repository.
• The board still writes nothing and launches nothing.

What it reads, and what it must not

It reads the run journal and the task identity file, next to the frontmatter it already reads. It must not read telemetry: the board is offline, unauthenticated, and local by design. Cost belongs to the skill that can reach the sink, and to the dashboard.

Its own product brief already names these two as missing — "journal des exécutions" and "tokens par phase" — and answers the second: the board is not where tokens belong.

Out of scope

• Any figure requiring the telemetry sink.
• Aggregation across projects.

Relations