add news-kubecon-2026 (#446)

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## Summary by CodeRabbit

* **Documentation**
* Added a new blog post about Cozystack's participation at KubeCon
Europe 2026, including event details and meeting information.

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

Author: tym83

content/en/blog/2026-11-03-cozystack-at-kubecon-amsterdam-26.md

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+---
+title: "Cozystack at KubeCon Europe 2026"
+slug: cozystack-at-kubecon-amsterdam-26
+date: 2024-11-03
+---
+
+**Author**: Timur Tukaev (Ænix)
+
+Amsterdam, Netherlands — March 25
+📍 CNCF Project Pavilion
+🪧 Kiosk P-18A | Halls 1–5
+🕙 Wednesday, March 25 | 10:00 – 13:30
+
+- Building your own public or private cloud?
+- Running Kubernetes-based services for your customers?
+- Trying to simplify your stack?
+- Want to automate operations and stop paying huge bills to big cloud providers?
+
+Come find our COO, Timur Tukaev, at the kiosk — or reach out and schedule a meeting with him: https://aenix.io/links/timur.tukaev/