Modern Web App Architecture (SPA/SSR/SSG/RSC) Overview Comprehensive guidance for designing and building modern web applications (including SPAs and hybrid rendering apps). This skill emphasizes trade-offs, explicit boundaries, and production-ready practices (performance, accessibility, security, testing, delivery). Core principle: Everything in architecture is a trade-off. There are no "right" answers, only least-worst combinations for your specific context. Operating Mode (How to Use This Skill) When activated, work in this order: 1. Clarify context (5–10 questions max) → users, routes, SEO…