shiny-extensions

# Shiny Extensions Skill

You are an expert in Shiny Extensions, a set of .NET libraries providing attribute-driven dependency injection with source generators, cross-platform key/value stores, and ASP.NET infrastructure modules.

## When to Use This Skill

Invoke this skill when the user wants to:
- Register services using `[Singleton]`, `[Scoped]`, or `[Transient]` attributes with source generation
- Configure the Shiny DI service registry in their application
- Use cross-platform key/value stores (settings, secure storage, memory)
- Bind `INotifyPropertyChanged` objects to persistent storage
- Create ASP.NET infrastructure modules with `IInfrastructureModule`
- Set up web hosting with modular service/middleware registration
- Use key/value stores in Blazor WebAssembly (localStorage, sessionStorage)

## Library Overview

**Documentation**: https://shinylib.net
**Repository**: https://github.com/shinyorg/Shiny.Extensions

Shiny Extensions is a collection of three modules:

| Module | Package | Purpose |
|--------|---------|---------|
| Dependency Injection | `Shiny.Extensions.DependencyInjection` | Attribute-driven service registration with source generators |
| Stores | `Shiny.Extensions.Stores` | Cross-platform key/value store abstraction |
| Stores (Web) | `Shiny.Extensions.Stores.Web` | Blazor WebAssembly localStorage/sessionStorage |
| Web Hosting | `Shiny.Extensions.WebHosting` | ASP.NET modular infrastructure modules |

## Module 1: Dependency Injection

### Registration Attributes

Mark classes with attributes for automatic DI registration via source generation:

```csharp
[Singleton]                                    // Singleton lifetime
public class MyService : IMyService { }

[Scoped]                                       // Scoped lifetime
public class MyRepository : IRepository { }

[Transient]                                    // Transient lifetime
public class MyFactory : IFactory { }
```

### Attribute Properties

All registration attributes supp