Consolidate tabs review

[jdolle]

Background

A review of the consolidate-tabs branch turned up a few regressions and gaps introduced by the migration from ui/tabs onto the Base UI components. This change addresses them; nothing here touches the seed script or the visual restyling.

Description

Schema check page

• The contract picker no longer loses keyboard focus when a contract is picked. DefaultSchemaView and ContractCheckView are now hooks that return tab items, and the page renders a single TabbedView, so switching graphs swaps the tabs instead of remounting the band the picker sits in.
• A contract's view resets to Details when a different contract is picked.
• Checks without contracts show the default graph's status glyph and tooltip again, in the picker's slot.
• The Commit cell has hover text for the full hash.

Schema version page

• Versions without contracts show the default graph's status glyph again; the legend only appears when contracts exist.

Base Tabs / TabbedView

• A tab activated from outside the strip (a service just added to a proposal) is scrolled into view. Clicks and arrow keys already scroll via focus; this covers the programmatic case the old editor handled itself. Only the strip scrolls, never the page.

Base Select

• aria-label now renders a hidden label and labels the trigger by that label plus itself (the APG select-only combobox pattern), so the accessible name keeps the current value: "Sort by, Requests" rather than "Sort by".
• The name and id reach a custom trigger too, including the function form.
• Spec updated to assert the labelling wiring, since the test library's name computation stops at the label for a self-referenced combobox while browsers include the option text.

Proposal editor

• A new service with an empty name keeps a visible tab ("unnamed service") and shows an error on the name field, sharing the existing conflict-message path.

Base DescriptionList

• String values get a title so text clipped by a narrow column is readable on hover.

[theguild-bot]

🚀 Snapshot Release (alpha)

The latest changes of this PR are available as alpha on npm (based on the declared changesets):

Package	Version	Info
hive	11.14.1-alpha-20260921200319-1ca4b843dd8ff8c08b460d95184bf0b6fdbc6103	npm ↗︎ unpkg ↗︎

[github-actions]

🐋 This PR was built and pushed to the following Docker images:

Targets: build

Platforms: linux/amd64

Image Tags: 11.14.1-alpha-1ca4b84, 1ca4b84, 1ca4b843dd8ff8c08b460d95184bf0b6fdbc6103