docs(sre): mirror DE anchor attributes + sync plugins catalog

[raifdmueller]

Small consistency follow-up to #561 (Site Reliability Engineering).

Changes

1. German anchor attribute parity — site-reliability-engineering.de.adoc carried only :categories:, :roles:, :proponents:; mirrored :related:, :tags:, :tier: (and the blank line before the collapsible block) from the English file so the EN/DE headers match the rest of the catalog. Functionally a no-op (metadata is derived from the English .adoc), purely source consistency.
2. Plugins catalog sync — the pre-commit hook synced the SRE entry into plugins/semantic-anchors/skills/semantic-anchor-translator/references/catalog.md. feat: add Site Reliability Engineering anchor #561 added the SRE entry to skill/.../catalog.md but the plugins/ mirror wasn't synced (the hook wasn't run on that commit), leaving the two copies drifted. This brings them back in sync.

No metadata regeneration needed. Rendered the DE file with asciidoctor (valid) and confirmed EN/DE attribute headers are now identical.

🤖 Generated with Claude Code

Summary by CodeRabbit

Release Notes

• Dokumentation
  • Umfassende Dokumentation zu Site Reliability Engineering (SRE) hinzugefügt mit Erklärungen zu Kern-Prinzipien einschließlich SLI/SLO/SLA, Error Budgets, Toil-Reduktion und blameless Postmortems.
  • Dokumentations-Metadaten erweitert für verbesserte Auffindbarkeit und Kategorisierung von SRE-Inhalten.

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yml

Review profile: CHILL

Plan: Pro

Run ID: 9713fd8a-76e4-4e0c-9392-661764a71016

📥 Commits

Reviewing files that changed from the base of the PR and between 18bc229 and c1f3529.

📒 Files selected for processing (2)

• docs/anchors/site-reliability-engineering.de.adoc
• plugins/semantic-anchors/skills/semantic-anchor-translator/references/catalog.md

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Walkthrough

Die Änderungen erweitern die Site-Reliability-Engineering-Dokumentation durch zusätzliche Metadaten in der deutschen Anker-Dokumentation und fügen einen entsprechenden Katalogeintrag in der Semantic-Anchors-Referenzbibliothek hinzu, um SRE auffindbar und verlinkt zu machen.

Changes

Site Reliability Engineering Dokumentation und Katalog

Layer / File(s)	Zusammenfassung
SRE-Ankerdokument Metadaten docs/anchors/site-reliability-engineering.de.adoc	Der AsciiDoc-Header wird um Relationen (:related:), Klassifizierungs-Tags (:tags:) und Tier-Einstufung (:tier:) erweitert, ohne dass der inhaltliche Haupttext verändert wird.
SRE-Katalogeintrag plugins/semantic-anchors/skills/semantic-anchor-translator/references/catalog.md	Ein neuer Katalogeintrag „Site Reliability Engineering (SRE)" mit Synonymen, Proponenten und Kerndefinition (SLI/SLO/SLA, Error Budgets, Toil-Reduktion, blameless Postmortems, four golden signals) wird zwischen „Spike Solution" und „Statistical Methods" eingefügt.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• LLM-Coding/Semantic-Anchors#561: Direkte Vorgänger-PR, die das Site-Reliability-Engineering-Anker und Katalog-Metadaten ursprünglich hinzufügt.
• LLM-Coding/Semantic-Anchors#408: Erweitert die references/catalog.md durch Hinzufügen neuer Domain-Einträge (Test Double Subtypen) nach dem gleichen Muster.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	Der Titel beschreibt die Hauptänderungen präzise: deutsche Anker-Attribute spiegeln + Plugin-Katalog synchronisieren.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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