🧹 docs: add comprehensive localized READMEs across the repository

[beginwebdev2002]

🎯 What
Generated and committed localized README.md files for ~164 directories throughout the Mavluda Beauty codebase. The generation script recursively parsed dependencies, file metadata, and feature-sliced boundaries to ensure each README.md features context-aware breadcrumbs, a Mermaid.js architectural graph, a file registry markdown table, and tailored execution snippets.

💡 Why
To ensure 100% architectural transparency and enforce a "Luxury Professional" documentation standard across both the backend NestJS modules and the frontend Angular standalone structure. This helps onboard engineers quicker and explicitly notes FSD layer constraints where applicable.

✅ Verification
Verified script executed successfully and bypassed standard ignoring layers appropriately. Code review feedback was implemented to resolve a bug injecting raw JS template string interpolation into root files. All files were successfully processed.

✨ Result
A perfectly uniform, visually-rich directory-level documentation system covering frontend/, backend/, and the repository root.

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PR created automatically by Jules for task 13548658664144114384 started by @beginwebdev2002

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