docs: align with satware AG best practices

- Delete deprecated CLAUDE.md
- Create root-level AGENTS.md for AI assistant guidance
- Create SDD constitution in .specify/memory/constitution.md
- Align documentation with PARA structure (docs/product/project-brief.md, docs/tech/stack.md, docs/plans/)
- Add standardized YAML frontmatter to all documentation files
- Update README.md with saTway branding and structure

docs/tech/current-software-audit.md

@@ -1,3 +1,15 @@
+---
+description: >-
+  Detailed inventory and audit of workstation software, identifying core tools,
+  categorized packages, and candidates for removal.
+tags:
+  - software-audit
+  - inventory
+  - maintenance
+  - cleanup
+last_updated: '2026-03-09'
+---
+
 # Software Audit - mw-pfeddersheim-workstation (2026-02-27)
 
 ## 1. Core Development Tools