type gets its own changelog before it needs one

[nyblnet]

bento/type had no changelog. Root CHANGELOG.md is bento/slides' (slides/ has none of its own), spaces/ and dash/ have had theirs for weeks, and type/ was missed when the apps multiplied. docs/PARALLEL-WORK.md §3 names CHANGELOG.md as the first conflict magnet and already said each app gets its own — this closes the gap it named.

One new file, 21 lines. No type/src file touched.

Why now rather than when type needs it

The maintainer is about to work type and spaces concurrently, a slides release is in flight with PR #400 open on the root file, and type is one user-facing change away from having nowhere correct to write. An empty file now costs nothing; the same file created mid-conflict costs a rebase on someone else's branch.

The preamble carries the reason, not just the rule

Lifted from spaces/CHANGELOG.md, where it was already stated and where PARALLEL-WORK.md never repeated it:

The notes ride inside the signed update manifest and are what someone reads while deciding whether to rewrite their file — so an app must never describe another app's changes.

That makes a cross-app entry a correctness defect, not untidiness: a user reading notes about changes their document did not get, inside a signed artifact. Worth stating in the file someone actually has open when they are about to append.

What I did not do

• No invented entries. type is 0.1.0 with no tag. [Unreleased] is empty and says so; pre-release work belongs in the first release's entry. The user-facing meaning of type's four commits is bento/type's to state, not mine.
• Did not move root → slides/CHANGELOG.md. PARALLEL-WORK.md points at that as the eventual shape, but doing it now would collide head-on with Reconstruct CHANGELOG [Unreleased] — the code morph was missing from it entirely #400 and with a release in flight. Filed as a follow-up rather than folded in; the amended §3 in The locale list leaves the prose, and pt is logged as an open question #401 records that the root file is slides' and has not moved yet, so nobody reads the gap as an accident.

Verified against origin/main = 220f7e7.

[github-actions]

Build size

main (220f7e7) → docs/type-changelog (7542b6b)

app	base	PR	change
bento/slides	669.3 KiB	669.3 KiB	0.0 KiB (0.00%)
bento/spaces	267.6 KiB	267.6 KiB	0.0 KiB (0.00%)
bento/dash	161.3 KiB	161.3 KiB	0.0 KiB (0.00%)

Updated: 2026-08-29T07:29:12Z