docs(arch): autonomous evolution of architecture blueprints

[beginwebdev2002]

This branch fulfills the Architectural Strategist mandate by autonomously evolving the ./architectures/ directory to adhere strictly to the CODE_OF_CONDUCT.md and repository standards.

Specifically, it ensures:

1. Every document begins with proper YAML frontmatter.
2. Every pattern strictly uses the 4-step cycle (Bad Practice, Problem, Best Practice, Solution).
3. Solutions technically justify the pattern's O(1) scalability and security benefits.
4. Mermaid diagrams with classDef constraints are integrated correctly.
5. ✅ Best Practice sections include internal routing callouts pointing back to the Architecture Map.
6. The readme.md root pattern map includes missing architectures like Microkernel.

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PR created automatically by Jules for task 12603475617025888631 started by @beginwebdev2002

[google-labs-jules]

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