Fabulous 10.0.0

• .NETStandard 2.1

  • FSharp.Core (>= 8.0.300)

• net10.0

  • FSharp.Core (>= 8.0.300)

### Added
- Consolidate the Fabulous core, Avalonia, .NET MAUI, extensions, templates, tests, documentation, and engineering into one repository.
- Add thread-safe throttled dispatch APIs and the `onReceive` component modifier ([#1130](https://github.com/fabulous-dev/Fabulous/pull/1130)).
- Add route-based .NET MAUI navigation stacks ([#1123](https://github.com/fabulous-dev/Fabulous/pull/1123)).
- Add Fabulous 10 architecture, migration, deployment, licensing, glossary, tutorial, and generated API-reference documentation ([#1127](https://github.com/fabulous-dev/Fabulous/pull/1127), [#1135](https://github.com/fabulous-dev/Fabulous/pull/1135)).
- Add release-candidate validation for packages, symbols, SourceLink, public APIs, samples, templates, clean consumers, screenshots, and native application launch ([#1126](https://github.com/fabulous-dev/Fabulous/pull/1126), [#1129](https://github.com/fabulous-dev/Fabulous/pull/1129), [#1131](https://github.com/fabulous-dev/Fabulous/pull/1131)).
- Add repository automation for issue triage and maintenance assistance ([#1146](https://github.com/fabulous-dev/Fabulous/pull/1146)).

### Changed
- Rename the core project and assembly from `Fabulous` to `Fabulous.Core`. The NuGet package ID and F# namespaces remain `Fabulous`.
- Build and publish all Fabulous packages and templates from one solution and release workflow.
- Unify all Fabulous package versions on the `10.0.x` release line.
- Target .NET 10 across the core, Avalonia, MAUI, samples, templates, and CI ([#1128](https://github.com/fabulous-dev/Fabulous/pull/1128)).
- Upgrade the Avalonia backend to Avalonia 12 and the MAUI backend to MAUI 10 ([#1124](https://github.com/fabulous-dev/Fabulous/pull/1124), [#1132](https://github.com/fabulous-dev/Fabulous/pull/1132)).
- Expand CI to build all Avalonia desktop samples, exercise native MAUI targets, instantiate all Avalonia template variants, and capture Gallery screenshots.
- Publish the website, authored documentation, and generated API reference together on GitHub Pages.
- Improve CI concurrency, dependency caching, sharding, artifact discovery, runtime readiness checks, and pull-request execution time ([#1133](https://github.com/fabulous-dev/Fabulous/pull/1133), [#1134](https://github.com/fabulous-dev/Fabulous/pull/1134), [#1139](https://github.com/fabulous-dev/Fabulous/pull/1139)).
- Update the contribution guide for agent-assisted development, maintainer review, and repository validation ([#1153](https://github.com/fabulous-dev/Fabulous/pull/1153)).
- Update Windows compatibility and sample APIs for .NET 10 and current MAUI behavior.
- Remove the obsolete MAUI `MenuItem.accelerator` modifier; use `MenuFlyoutItem.keyboardAccelerators` instead.

### Fixed
- Release publishing now starts only for changelog changes, waits for the matching successful CI run, and no longer requests approval for ordinary builds.
- Make MAUI virtualized collection updates safe when templates and source collections change ([#1125](https://github.com/fabulous-dev/Fabulous/pull/1125)).
- Fix Android, Apple, and Windows package discovery, deployment, startup, and runtime smoke validation ([#1131](https://github.com/fabulous-dev/Fabulous/pull/1131), [#1134](https://github.com/fabulous-dev/Fabulous/pull/1134), [#1138](https://github.com/fabulous-dev/Fabulous/pull/1138)).
- Fix Avalonia screenshot readiness and Gallery overview capture ([#1140](https://github.com/fabulous-dev/Fabulous/pull/1140)).
- Fix .NET 10 sample and template restore, packaging, runtime identifiers, platform architecture, and generated resources.
- Fix MAUI deprecation warnings, WinUI sample executable discovery, and website community links ([#1136](https://github.com/fabulous-dev/Fabulous/pull/1136), [#1137](https://github.com/fabulous-dev/Fabulous/pull/1137), [#1138](https://github.com/fabulous-dev/Fabulous/pull/1138)).
- Correct the published MAUI and Avalonia deployment commands for .NET 10.