🧹 docs(frontend): autonomous architectural standardization for frontend

[beginwebdev2002]

🎯 What
Standardized the frontend documentation to strictly enforce the YAML metadata format, decomposed dense files into dedicated modules, and verified the "Bad-to-Solution" lifecycle across the ./frontend/ folder.
💡 Why
To ensure deterministic execution by Vibe Coding tools, improve maintainability, and enforce zero-ambiguity architectural standards across the entire frontend domain in alignment with the repository's strict Code of Conduct.
✅ Verification
Verified via test automation scripts, manual git diff review, and vibe-check-runner.js execution to confirm standards compliance without regressions.
✨ Result
A clean, automated, and deterministic frontend documentation ecosystem that is perfectly "Agent-Readable" and ready for scale.

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PR created automatically by Jules for task 11997339318637378302 started by @beginwebdev2002

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