fix(changeset): grade the three repaired consumers minor, as the clause-② declaration requires

`Check Changeset`'s level axis is red on this PR: it declares `Clause-②: yes`
and grades three packages whose `src/**` the diff moves at `patch`. A purely
additive widening of a published package's public surface takes at least
`minor` (maintainer ruling 2026-09-04, decision batch #35, on #15294).

`@objectstack/metadata` and `@objectstack/metadata-protocol` are the two the
gate can name. `@objectstack/plugin-auth` rises for the same reason and is NOT
graded by the gate: `PUBLISHED_SOURCE_PATH` is anchored `^packages/([^/]+)/src/`
and this package's changed source is `packages/plugins/plugin-auth/src/` — one
directory level deeper, so it never enters the gate's "grown" set. That is the
blind spot carded as #16713. The level floor comes from the act the PR declares,
not from what the instrument happens to measure.

No source, test or config byte moves; the level axis is the only thing this
commit answers for.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ADLdAs2pVcH17h9tZKWMBg

Author: claude

.changeset/engine-verb-result-declarations.md

@@ -1,9 +1,9 @@
 ---
 "@objectstack/spec": minor
 "@objectstack/objectql": minor
-"@objectstack/metadata": patch
-"@objectstack/metadata-protocol": patch
-"@objectstack/plugin-auth": patch
+"@objectstack/metadata": minor
+"@objectstack/metadata-protocol": minor
+"@objectstack/plugin-auth": minor
 ---
 
 feat(engine)!: `findOne`, `update` and `delete` declare what they answer, and their hook seams are guarded (#16231)