feat(core): promote Drawer from lab - #6071

Stack

Depends on #6073 — harden Drawer layer lifecycle in Lab. This PR intentionally contains only promotion and migration work; the behavior changes are reviewed first in #6073.

Why

Once the Lab hardening lands, Drawer satisfies the shared overlay and native top-layer contracts required for Core. Promoting it gives consumers a stable inspector/detail-panel primitive without changing its public props.

Prior API work: #3327, #5246. The broader Sheet questions remain in #3675; this promotion stays inline-axis only and continues to direct block-axis use cases to BottomSheet.

What

• Moves the hardened Drawer implementation, docs, and tests from @astryxdesign/lab to @astryxdesign/core/Drawer.
• Adds the Core root/subpath exports and updates Storybook, sandbox, motion-audit, RTL, modal-host, and visual-scope references.
• Adds Drawer showcase and row-inspector CLI blocks.
• Adds a staged astryx upgrade --apply codemod that moves Drawer and DrawerProps imports/re-exports from the Lab root or Lab Drawer subpath to @astryxdesign/core/Drawer.
• Records the import-path move as a [breaking] minor release for Core and CLI.
• Updates current architecture/family record paths and terminology from Lab Drawer to Drawer.

Risk

There is no Drawer behavior change relative to #6073. The main compatibility risk is the import-path move; the codemod covers value imports, type imports, aliases, mixed Lab imports, direct Drawer subpaths, and re-exports.

Testing

• pnpm lint:strict
• pnpm build
• Promotion, Drawer/layer/focus, CLI discovery/template, visual-scope, and codemod suites — 236 tests passed
• pnpm check:sync
• pnpm check:knowledge
• pnpm check:changesets
• pnpm check:cli-structure
• pnpm sync:exports:check
• pnpm check:package-boundaries
• pnpm storybook:build
• pnpm guard:modal-close --storybook-dir apps/storybook/dist
• pnpm a11y:audit -- --components Drawer — 8 stories, 0 violations
• pnpm rtl:audit -- --filter Drawer — D4 pass, no coverage gap

Accessibility promotion checklist

• Name: required Drawer label plus localized close-button name.
• Role: native dialog semantics; modal behavior follows the WAI-ARIA modal dialog pattern.
• State: aria-modal is present only for the modal path; controlled isOpen remains authoritative.
• Keyboard: Escape reaches only the shared topmost layer; consumer cancellation and IME handling remain intact.
• Focus: modal focus is trapped and restored; non-modal focus is intentionally not trapped.
• Announcements: N/A — Drawer owns no async status transition.
• Reduced motion: entry and exit remain guarded by prefers-reduced-motion.
• Contrast/themes: rendered in light and Y2K dark; component paint remains token-backed.
• Forced colors: panel content and dismissal control remain visible in Chromium forced-colors mode.
• i18n: the built-in close label resolves through useTranslator().
• Target size: the close control measures ×ばつ32px.

Before marking ready

• Land fix(lab): harden Drawer layer lifecycle #6073 and retarget this PR to main.
• Record the full promotion audit (B or better, zero BLOCKs) in the component-score ledger.
• Attach the visual contact sheet from the promotion audit.
• Obtain spec-owner approval for the path/terminology updates.