## Summary
Complete the @e2e/ path alias migration started in #10735 by converting
all 354 remaining relative imports and adding a lint rule to prevent
backsliding.
## Changes
- **What**: Migrate all relative imports in browser_tests/ to use
`@e2e/` (intra-directory) and `@/` (src/ imports) path aliases. Add
`no-restricted-imports` ESLint rule banning `./` and `../` imports in
`browser_tests/**/*.ts`. Suppress pre-existing oxlint `no-eval` and
`no-console` warnings exposed by touching those files.
## Review Focus
- ESLint flat-config merging: the `@playwright/test` ban and
relative-import ban are in two separate blocks to avoid last-match-wins
collision with the `useI18n`/`useVirtualList` blocks higher in the
config.
- The `['./**', '../**']` glob patterns (not `['./*', '../*']`) are
needed to catch multi-level relative paths like `../../../src/foo`.
Follows up on #10735
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10958-test-migrate-browser_tests-to-e2e-path-alias-and-add-lint-rule-33c6d73d365081649d1be771eac986fd)
by [Unito](https://www.unito.io)
Co-authored-by: Amp <amp@ampcode.com>
## Summary
- Add `ModelLibraryHelper` mock helper for `/experiment/models` and
`/view_metadata` endpoints
- Add `ModelLibrarySidebarTab` page object fixture with search, folder,
and leaf locators
- Add 11 E2E test scenarios covering tab open/close, folder display,
folder expansion, search with debounce, refresh, load all folders, and
empty state
## Test plan
- [ ] CI passes all Playwright shards
- [ ] `pnpm typecheck:browser` passes
- [ ] `pnpm lint` passes
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10789-test-modelLibrary-add-E2E-tests-for-model-library-sidebar-tab-3356d73d365081b49a7ed752512164da)
by [Unito](https://www.unito.io)
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
