Docs fix — frontmatter: path /elastic-cloud-serverless — 4 pages

Generated by `gh-aw-docs-frontmatter-sweep` for `elastic/docs-content` on 2026-W24.

Path /elastic-cloud-serverless · 49 total in scope · subtree corpus 49 pages.

## Findings (4)

```yaml
- file: release-notes/elastic-cloud-serverless/breaking-changes.md
line: 1
category: missing-description
severity: high
evidence: "frontmatter has no `description` field"
suggested_fix: |
description: "Breaking changes introduced in Elastic Cloud Serverless releases, with details on required actions."
- file: release-notes/elastic-cloud-serverless/deprecations.md
line: 1
category: missing-description
severity: high
evidence: "frontmatter has no `description` field"
suggested_fix: |
description: "Deprecated functionality in Elastic Cloud Serverless releases with guidance on updating your implementation."
- file: release-notes/elastic-cloud-serverless/index.md
line: 1
category: missing-description
severity: high
evidence: "frontmatter has no `description` field"
suggested_fix: |
description: "Changelog for Elastic Cloud Serverless, listing features, enhancements, bug fixes, and updates for each release."
- file: release-notes/elastic-cloud-serverless/known-issues.md
line: 1
category: missing-description
severity: high
evidence: "frontmatter has no `description` field"
suggested_fix: |
description: "Known issues for Elastic Cloud Serverless, including active defects, limitations, and available workarounds."
```

## Done when
- All listed pages have a non-empty, <=200-character `description` field and required frontmatter keys present per the repo's frontmatter schema.
- A PR addressing this issue is merged.

## Notes
- 45 snippet files under `_snippets/` are excluded; they are included content fragments without standalone frontmatter requirements.

> Generated by [Docs frontmatter sweep agent](https://github.com/elastic/docs-content/actions/runs/27347261380) · 105.3 AIC · ⌖ 13 AIC · ⊞ 26.9K · [◷](https://github.com/search?q=repo%3Aelastic%2Fdocs-content+is%3Aissue+%22gh-aw-workflow-call-id%3A+elastic%2Fdocs-content%2Fgh-aw-docs-frontmatter-sweep%22&type=issues)