Idea inbox

Raw ideas with no spec yet: one line each, no code, no format. Any spec session empties this list first: each idea goes into its feature's spec with a code (and into docs/plan/roadmap.yaml), or into a new spec made from docs/_template.md. Then the line is deleted here.

Waiting

• The old plans' leftovers, one block per spec: Leftovers. Take a block when you write its spec.