fix(skeleton): Добавить состояние по умолчанию для useSkeleton [DS-14170]

[dHIM24]

hooks/useSkeleton

Добавлено дефолтное состояние в useSkeleton, чтобы SSR сразу отдавал текстовый скелетон без мерцания.

Чек лист

• Задача сформулирована и описана в JIRA
• В названии ветки есть айдишник задачи в JIRA (fix/DS-1234), ссылку прикреплять не надо
• У реквеста осмысленное название feat(...) или fix(...) по conventional commits (https://www.conventionalcommits.org)
• Код покрыт тестами и протестирован в различных браузерах
• Добавленные пропсы добавлены в демки и описаны в документации
• К реквесту добавлен changeset

Если есть визуальные изменения

• Прикреплено изображение было/стало

Код для воспроизведения бага:
https://github.com/dHIM24/core-components-test-ssr/blob/DS-14170/src/pages/index.tsx

Было:

2025-12-11.01.23.24.mov

Стало:

[changeset-bot]

🦋 Changeset detected

Latest commit: 1206a0f

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 41 packages

Name	Type
@alfalab/core-components-skeleton	Patch
@alfalab/core-components	Patch
@alfalab/core-components-calendar-with-skeleton	Patch
@alfalab/core-components-select	Patch
@alfalab/core-components-tabs	Patch
@alfalab/core-components-typography	Patch
@alfalab/core-components-custom-picker-button	Patch
@alfalab/core-components-input-autocomplete	Patch
@alfalab/core-components-international-phone-input	Patch
@alfalab/core-components-intl-phone-input	Patch
@alfalab/core-components-picker-button	Patch
@alfalab/core-components-select-with-tags	Patch
@alfalab/core-components-table	Patch
@alfalab/core-components-accordion	Patch
@alfalab/core-components-calendar	Patch
@alfalab/core-components-chart	Patch
@alfalab/core-components-circular-progress-bar	Patch
@alfalab/core-components-comment	Patch
@alfalab/core-components-confirmation	Patch
@alfalab/core-components-file-upload-item	Patch
@alfalab/core-components-gallery	Patch
@alfalab/core-components-list-header	Patch
@alfalab/core-components-list	Patch
@alfalab/core-components-markdown	Patch
@alfalab/core-components-navigation-bar-private	Patch
@alfalab/core-components-navigation-bar	Patch
@alfalab/core-components-product-cover	Patch
@alfalab/core-components-pure-cell	Patch
@alfalab/core-components-stepped-progress-bar	Patch
@alfalab/core-components-tab-bar	Patch
@alfalab/core-components-universal-modal	Patch
@alfalab/core-components-calendar-input	Patch
@alfalab/core-components-calendar-range	Patch
@alfalab/core-components-date-range-input	Patch
@alfalab/core-components-date-time-input	Patch
@alfalab/core-components-universal-date-input	Patch
@alfalab/core-components-bottom-sheet	Patch
@alfalab/core-components-modal	Patch
@alfalab/core-components-popup-sheet	Patch
@alfalab/core-components-side-panel	Patch
@alfalab/core-components-tooltip	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coveralls]

Pull Request Test Coverage Report for Build 20125380914

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 16 of 31 (51.61%) changed or added relevant lines in 2 files are covered.
• 52 unchanged lines in 5 files lost coverage.
• Overall coverage increased (+0.04%) to 79.75%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
packages/skeleton/src/hooks/use-skeleton/use-skeleton.tsx	8	10	80.0%
packages/skeleton/src/utils.ts	8	21	38.1%

Files with Coverage Reduction	New Missed Lines	%
packages/universal-modal/src/desktop/components/buttons/arrow-button/arrow-button.tsx	2	75.0%
packages/universal-modal/src/desktop/components/buttons/cross-button/cross-button.tsx	2	71.43%
packages/universal-modal/src/mobile/components/buttons/arrow-button/arrow-button.tsx	2	71.43%
packages/universal-modal/src/mobile/components/buttons/cross-button/cross-button.tsx	2	71.43%
packages/bottom-sheet/src/component.tsx	44	66.41%

Totals
Change from base Build 19334456547:	0.04%
Covered Lines:	9703
Relevant Lines:	11403

---

💛 - Coveralls

[github-actions]

Demo build

https://core-ds.github.io/core-components/1964