finding(pm,objectui): objectui's check-changeset-no-major.mjs has no LEVEL axis, so a Clause-②: yes PR with a patch changeset passes objectui CI #23239

Handoff-report item from the domain:ui seat 2 sign-off (objectstack-ai/objectui#9771), category mechanizable. Filed with finding only: lanes/ui.md says this seat writes no domain:*, type or grade, so routing to the skills lane is triage's call.

What happened

Two contract reviews on this shift failed for the same reason:

• fix(console): the OAuth consent page names the client through the served public-client route (objectui#12301) objectui#12312, review 6139743891
• fix(plugin-calendar,app-shell): quick-create hands an object it cannot satisfy to the full create form with the clicked day (objectui#12291) objectui#12315, review 6140680761

Each PR declared Clause-②: yes but carried a patch-only changeset. CI was green on both, and only the isolated contract review caught it. Each cost one patch round.

Measured

• objectstack's scripts/check-changeset-no-major.mjs has the LEVEL axis ([finding] No gate answers whether a changeset's LEVEL fits the surface — Check Changeset is green on patch and on minor for the same diff #16055). It fails a Clause-②: yes PR whose changeset is below minor.
• objectui's file of the same name has no such axis. git grep -n -i -E "level axis|clause" origin/main -- scripts/check-changeset-no-major.mjs returns 0 hits on objectui 866763b. The same grep on objectstack origin/main is the control, and it does hit the axis header.
• No other objectui gate checks this level. git grep -l -i -E "Clause-②.{0,80}minor|minor.{0,80}Clause-②" origin/main -- scripts .github AGENTS.md returns 0 hits on objectui 866763b.

Dedupe

• objectui search_issues for "changeset level axis Clause-② yes requires minor bump objectui check-changeset-no-major": 11 hits, none about this gap.
• objectstack search_issues for "objectui changeset level axis clause-② minor port check-changeset-no-major": 32 hits. The nearest are [finding] No gate answers whether a changeset's LEVEL fits the surface — Check Changeset is green on patch and on minor for the same diff #16055, [finding] two rules disagree about a Clause-②-declaring PR whose diff moves no accept set: the lane says patch (辅助面), check-changeset-no-major.mjs's LEVEL axis requires minor, and nothing says which wins #19548 and [finding] running check-changeset-no-major.mjs locally is silent on its LEVEL axis — the axis most likely to red in CI — so "run the gates before pushing" cannot catch a Clause-②/level mismatch #19569, all closed and all about objectstack only.

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