augment-it goes end-to-end — your spreadsheets, your browser, four phases in one push

Phases 2 through 5 of the walking skeleton landed in a single session. Five containers running, the two real fundraise spreadsheets ingested, cells editable from a Svelte 5 frontend that consumes the workspace singleton, and the architecture demo's strongest claim — 'adding a new service is cheap' — has gone from slide to docker-compose diff. The 27th service made its first appearance as xlsx-ingest, with zero changes to row-store.