Add a CHANGELOG, pin the install URL to the tag, drop lint.yml

[leogdion]

Merge order: 6 of 6, into v1.0.0-integration — merge last, so the pinned
curl URL lands immediately before the tag.

Closes #30, closes #33.

#30 — CHANGELOG and release notes

CHANGELOG.md in Keep a Changelog form with a
## [1.0.0] section. For a first release it describes the tool rather than a
diff:

• the five subcommands — init, root, add, track, list/ls
• the container layout, and all four env vars including TREES_NO_PUSH
• requirements, corrected per Docs: a quickstart that works, a concepts primer, and honest install docs #38 (Bash, not sh; macOS 3.2 is fine)
• Behavior worth knowing — that add writes to the remote by default, and
  that clean is absent with the by-hand equivalent
• every fix from Remove the clean subcommand from v1.0.0 #35–CI: test the failure modes, not just the happy paths #39, called out by behavior change, with issue links
• known limitations

Curl URL pinned to v1.0.0

Deliberately last: the README URL 404s in the window between this merging and
the tag existing, so the two should happen back to back.

#33 — lint.yml

A three-line comment-only file at the repo root saying linting moved to
.github/workflows/ci.yml. GitHub never ran it — it isn't in
.github/workflows/ — and it is tracked, so it would have shipped inside the tag
as a note to maintainers about a refactor that already happened. The commit that
moved the workflow is the durable record.

grep -rn 'lint\.yml' now returns only the CHANGELOG entry recording the
removal.

Scope notes

• Add git trees version / --version #28 (git trees version / --version) is explicitly out of scope and
  stays open, so Add a CHANGELOG and v1.0.0 release notes #30's "VERSION matches the tag" checklist item is dropped and
  the gap is instead recorded under Known limitations. Pinning the curl URL is
  what makes an install identifiable without it.
• Add a CHANGELOG and v1.0.0 release notes #30's "remove the untracked issues/ review packet" item is already satisfied
  — no such directory exists in the tree.

Release checklist

• Remove the clean subcommand from v1.0.0 #35, Fix five defects in git-trees #36, Document that add writes to the remote, and add --no-push #37, Docs: a quickstart that works, a concepts primer, and honest install docs #38, CI: test the failure modes, not just the happy paths #39 merged into v1.0.0-integration, CI green on
  ubuntu + macOS
• README followed literally on a clean checkout — ends somewhere
  git status works
• v1.0.0-integration merged to main; tag points at main and is the
  intended tip
• Tag cut immediately after this merges, so the pinned curl URL resolves
• No release assets needed beyond the tag (script-only)

Then, to publish — this extraction command is verified against the file as
committed (sed -n '/## 1.0.0/,/## 0/p' from #30 does not terminate, since
there is no earlier version section):

gh release create v1.0.0 --title "v1.0.0" --notes-file <(
  awk '/^## \[1\.0\.0\]/{f=1} /^\[Unreleased\]:/{f=0} f' CHANGELOG.md
)

I have not cut the tag or created the release — that is outward-facing and
yours to run.

🤖 Generated with Claude Code

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