mayuanyang/Mediator.Net

💥 Breaking changes

• `IMediator` now inherits `IAsyncDisposable` — any code implementing `IMediator` directly must add `DisposeAsync()`. Consumers of `IMediator` are unaffected.

🐛 Bug fixes

• `MediatorBuilder.RegisterHandlers(Assembly)` now correctly picks up `IStreamCommandHandler<,>` implementors (previously silently skipped, causing `NoHandlerFoundException` at runtime)
• Fixed broken return value in `RequestPipe.ConnectToHandler` `IAsyncEnumerable` branch (`Task.FromResult(r)` → `r`)
• `PipeHelper.GetResultFromTask` now throws `InvalidOperationException` with a descriptive message instead of bare `Exception`

📦 Improvements

• `Mediator` implements `IAsyncDisposable` with async-path fallback via `DisposeAsync()`
• Removed unnecessary reflection in `ReceiveContext.PublishAsync` — `publishPipe.Connect()` is now called directly through the interface
• `[EnumeratorCancellation]` added to `ConnectStream` async-iterator methods so cancellation tokens are correctly forwarded to consumers
• `Count()` LINQ extension replaced with `.Count` property (O(1)) at 4 sites in `CommandReceivePipe` and `RequestPipe`
• `ReceiveContext.MetaData` uses `??=` operator
• Internal class `GlobalRececivePipeConfigurator` renamed to `GlobalReceivePipeConfigurator` (typo fix)
• Full Changelog: https://github.com/mayuanyang/Mediator.Net/compare/4.9.0...5.0.0