Fresh Core Knowledge Full Reference : See advanced.md for Shared Signals, Middleware (Auth, CORS), Plugins, Error Handling, and Production Readiness. Basic Setup Configuration File-Based Routing Handlers Handler with Page Islands Architecture Islands with Props Signals (State Management) Static Components Forms Basic Middleware --- Checklist - [ ] Islands only for interactive components - [ ] Static components for server-rendered content - [ ] Middleware for cross-cutting concerns - [ ] Error pages ( 404.tsx, 500.tsx) - [ ] Health/readiness endpoints - [ ] Environment variables via Deno.env -…