feat: documents and session tokens

CHANGELOG.md

@@ -1,14 +1,17 @@
 # Changelog
 
-Every change to a computed value is a breaking change and needs a major version of the format it touches; see [spec/00-introduction.md](spec/00-introduction.md).
+A change to any computed value is a breaking change and needs a new major version of the format it touches; see [spec/00-introduction.md](spec/00-introduction.md).
 
 ## 0.1.0
 
-The first release, written for level 3 so that formats never change as the studio moves up.
+The first release.
 
-- Chapters 0 to 22, covering every format the design names.
-- 37 JSON Schemas, restricted to a keyword subset that independent validators read alike.
-- Tables for SQLite, Dolt and PostgreSQL, a team store, and the SQLite bundle with FTS5.
-- The JSON-LD context for layers, and registries of formats, rules, stamp rules and stage defaults.
-- Vectors for canonical JSON, normalization, IDs, notation, both projections, offsets, the five values, addresses, keyed hashes, page fingerprints, Merkle roots, signatures, spot-checks, error bounds, alignment, every correction, anchor resolution, rights and grading.
-- Packages for the three M1 fixtures (two sections of a converted chemistry paper with a multi-level-header table, an open-access paper and a short Typst draft), a checks-only export, and a tiny document; records of every other format; and seventeen invalid packages.
+- The specification, in chapters 0 to 22, covering every format.
+- 37 JSON Schemas, using a keyword subset that independent validators read alike.
+- Tables for SQLite, Dolt and PostgreSQL, a team's store, and the SQLite bundle with full-text search.
+- The JSON-LD context for layers, and registries of formats, rules, download-stamp rules and default stage requirements.
+- Test vectors for every computed value, from canonical JSON to anchor resolution and grading.
+- Example packages (a converted chemistry paper with corrections and receipts, its checks-only export, an open-access paper, a Typst draft and a tiny document), a record of every other format, and seventeen broken packages.
+- Guides for newcomers: an overview, the concepts, a walkthrough of the example paper, runnable examples, the rationale, a FAQ and a glossary.
+- Tools that build and check everything, and one that loads packages into SQLite.
+- A pixi workspace with tasks for checking, building, linting and loading, and an environment for the oldest supported Python.