dotnet-uno-testing Testing Uno Platform applications across target heads (WASM, Desktop, Mobile). Covers Playwright-based browser automation for Uno WASM apps, platform-specific testing patterns for different runtime heads, and test infrastructure for cross-platform Uno projects. Version assumptions: .NET 8.0+ baseline, Uno Platform 5.x+, Playwright 1.40+ for WASM testing. Uno Platform uses single-project structure with multiple target frameworks. Out of scope: Shared UI testing patterns (page object model, selectors, wait strategies) are in [skill:dotnet-ui-testing-core]. Playwright fundamen…