alien-signals

Alien Signals is a high-performance reactive programming system for Lua,
ported from stackblitz/alien-signals.

It provides automatic dependency tracking and efficient update propagation
through a small and powerful API.

Core features:
- Signal: mutable reactive values
- Computed: derived values with caching
- Effect: side effects that re-run when dependencies change
- EffectScope: group and dispose multiple effects
- Batch: efficient bulk state updates
- Watch: observe reactive value changes