Roadmap

Committed next steps, in dependency order. Anything not here is in BACKLOG.md; rejected directions are in SCOPE.md. The reasoning behind each shape is in DECISIONS.md.

The ordering rule: each phase must produce an observable result on its own. The alternative - building the container parser, the address space, and the GPU layer before anything can be run - is how a project reaches month six with nothing to show and no way to tell which of three layers is wrong.

Phases 1-6 are a strict chain, with 1b and 2b hanging off 1. Phases 0b through 0e are independent of everything and of each other.