Interactive page comparing 5 unique DreamStack capabilities vs React/Svelte/Solid/Vue:
1. Reactivity as a type (Signal<T> in the type system)
2. Algebraic effects (swappable side-effect handlers)
3. Springs are signals (physics auto-propagates through reactive graph)
4. Compile-time dependency graph (static analysis, dead signal elimination)
5. Constraint-based layout (Cassowary solver, not CSS hacks)
Includes live spring physics demo, interactive constraint layout toggle,
side-by-side code comparisons, Elm-style error previews, and comparison table.
