CHANGELOG 1.3.10 (unreleased) with behaviour-change and breaking
sections, README capability rows and a 1.3.10 section, ARCHITECTURE
section 15 plus 6.2/7 updates, schema doc for the stream_end column,
migration impact notes, ROADMAP entry, .env.example MISSING_DONE
semantics, and a revision pointer on the 1.3.9 design. Follow-ups
filed as #32 and #33.
The migration doc is a standing constraint on library design, so an
outdated enum there states an outdated fact. B13's substance survives
the change -- GovDoc's zero was never the problem, the missing label
was -- but the row now names unavailable and the cache_hit-qualified
gap query alongside it.
VT migration abandoned (v1.0 scope becomes two projects), Q1 resolved
to Gitea PyPI, Q6 resolved as judge exemption (unwired zero-consumer
eval scaffolding), migration docs annotated with implementation errata,
and the reference/ read-only rule clarified for the worktree workflow.