Add the Consensus fortnightly update for 2025-11-26 (#695)

Author: dnadales

blog/2025-11-26-consensus.md

@@ -0,0 +1,13 @@
+---
+title: Consensus Team Update
+slug: 2025-11-26-consensus
+authors: dnadales
+tags: [consensus]
+hide_table_of_contents: false
+---
+
+## High level summary
+
+- Participated in the November 2025 incident response, providing analysis on potential intervention scenarios and tracking chain progression metrics.
+- Merged documentation of the Leios Protocol Burst attack threat model ([ouroboros-leios#624](https://github.com/input-output-hk/ouroboros-leios/pull/624)), strengthening the protocol's security foundation ahead of load testing and mitigation strategy development.
+- Continued preparation for the Leios November demo, with significant progress on observability infrastructure using Grafana and Prometheus ([#1766](https://github.com/IntersectMBO/ouroboros-consensus/issues/1766)), and demo packaging to streamline deployment ([#1759](https://github.com/IntersectMBO/ouroboros-consensus/issues/1759)). Both tasks are expected to be completed by end of week.