blog: add OSS health section launch announcement (#474)

## Summary

- Adds a new blog post announcing the OSS health section launch on
cozystack.io
- Three screenshots included: OSS Insight, OpenSSF, DevStats
- Content based on the [Medium
article](https://blog.aenix.io/cozystack-have-launched-a-new-oss-health-section-on-a-website-fa1f4d889c47)
- Stats from the latest monthly snapshot: 2026-03-06 to 2026-04-05

## Test plan

- [x] Preview the Hugo build locally to verify images render correctly
- [x] Check that all links to cozystack.io/oss-health/* are working
- [x] Verify frontmatter date and author are correct

🤖 Generated with [Claude Code](https://claude.com/claude-code)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Documentation**
* Published a new blog post introducing the newly launched OSS health
section on the Cozystack website. The section highlights repository
activity metrics including stars, forks, watchers, issues, commits, and
merged PRs, along with OpenSSF Best Practices certification status and
DevStats community and development statistics.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: tym83

content/en/blog/2026-04-08-cozystack-oss-health-section/devstats.png

@@ -0,0 +1,47 @@
+---
+title: "Cozystack Have Launched a New OSS Health Section on the Website"
+slug: cozystack-oss-health-section
+date: 2026-04-08
+author: "Timur Tukaev"
+description: "We have launched a new OSS health section on the Cozystack website, with project stats refreshed automatically every month."
+---
+
+![OSS Insight snapshot](oss-insight.png)
+
+We have added a new [OSS health section](https://cozystack.io/oss-health/) to the Cozystack website, with project metrics refreshed once a month. The goal is simple: make Cozystack's open source activity easier to explore from several angles in one place.
+
+## OSS Insight
+
+[OSS Insight](https://cozystack.io/oss-health/oss-insight/) shows repository activity and public traction, including stars, forks, watchers, open issues, commits, and merged PRs.
+
+## OpenSSF
+
+![OpenSSF Best Practices badge](openssf.png)
+
+[OpenSSF](https://cozystack.io/oss-health/openssf/) shows Cozystack's current status in OpenSSF Best Practices. In the April 5, 2026 snapshot, the project is marked as **Passing**.
+
+## DevStats
+
+![DevStats community snapshot](devstats.png)
+
+[DevStats](https://cozystack.io/oss-health/devstats/) shows community activity and development rhythm, including commits, contributors, PR authors, opened and merged PRs, and related trends across month, quarter, and year views.
+
+In the latest monthly snapshot covering 2026-03-06 through 2026-04-05, Cozystack shows:
+
+- **221** commits
+- **16** contributors
+- **151** PRs opened
+- **127** PRs merged
+- **2,014** GitHub stars
+
+---
+
+If you are interested in Kubernetes, platform engineering, and open source infrastructure, take a look:
+
+- Website: [cozystack.io](https://cozystack.io/)
+- OSS Health: [cozystack.io/oss-health/](https://cozystack.io/oss-health/)
+- GitHub: [github.com/cozystack/cozystack](https://github.com/cozystack/cozystack)
+- Telegram community: [t.me/cozystack](https://t.me/cozystack/)
+- Cozystack in Kubernetes Slack: [#cozystack](https://kubernetes.slack.com/messages/cozystack)
+
+Support is always welcome — star the repository, contribute code, issues, or feedback, and share Cozystack with colleagues, friends, and the broader community.