docs: blog post "Self-Improving AI Systems: A Log-Analysis Agent on NVIDIA DGX Spark" (#579)

* docs: add blog post "Self-Improving AI Systems: A Log-Analysis Agent on NVIDIA DGX Spark"

New post with thumbnail, architecture diagram (Fig. 1) and a dense-vs-MoE throughput chart (Fig. 2).
Numbers come from three experiments run on one DGX Spark with Nemotron 3.5 Lightning against the
civic MultiHop-RAG dataset, plus the throughput benchmarks in deepset-ai/dgx-spark.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: pin the optimizer snippet to the commit the experiments ran on

The LocalRunStore API no longer exists on the PR branch; the snippet now matches commit 15bc78075
of haystack-core-integrations#3932 and links to it so readers can reproduce the runs.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: mark changed lines in the before/after YAML as CHANGED (review suggestion)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: add Sebastian Husch Lee as second author

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* docs: contrast unified memory with discrete GPU memory in the bandwidth paragraph (review suggestion)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* Revert "docs: contrast unified memory with discrete GPU memory in the bandwidth paragraph (review suggestion)"

This reverts commit 88a5409.

* Point to commit

Co-authored-by: Julian Risch <julianrisch@gmx.de>

* docs: update Sebastian Husch Lee's position to Open Source Tech Lead

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* Apply batched suggestions from code review

Co-authored-by: Bilge Yücel <bilge.yucel@deepset.ai>

* docs: add two example questions from the evaluation set

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* docs: list the optimizer candidates as bullet points

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* docs: explain the reference agent's use case as agentic RAG

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

* update date to 2026-10-07

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Bilge Yücel <bilge.yucel@deepset.ai>

Author: 3 people

content/authors/sebastian-husch-lee/_index.md

@@ -3,7 +3,7 @@ layout: author
 title: Sebastian Husch Lee
 name: Sebastian Husch Lee
 slug: sebastian-husch-lee
-position: Solution Engineering Tech Lead
+position: Open Source Tech Lead
 image: /images/authors/sebastian-lee.png
 socials:
   author_page: