Major namespace migration from SPMD to HPC across all code, templates, and projects. Introduced Misaki.HighPerformance.HPC.Generator with Roslyn-based source generators for SIMD code (e.g., AVX2), including attribute and method generators. Renamed MultipleAdd to MultiplyAdd in all lanes and updated usages. Added AVX2 utility methods via codegen. Updated tests, benchmarks, and project references to use the new framework. Improved SIMD memory utilities and modernized project files. Removed legacy SPMD project from the solution.
- Add new SPMD SIMD math project with scalar/vector lanes
- Integrate SPMD jobs and scheduling into job system
- Implement lock-free job dependency management
- Update math functions for .NET 10 and SIMD performance
- Add SPMD benchmarks, compress-store tests, and race tests
- Introduce generic Result<T> error handling utilities
- Solution/project file updates and code cleanup
