Fix Utf8Transcoder AVX2 bug, add SIMD boundary tests
- Added Hungarian language preference rule to copilot-instructions.md.
- Fixed AVX2 SIMD bug in Utf8Transcoder: corrected upper-half store offset from Vector128<ushort>.Count to Vector256<ushort>.Count, preventing memory overlap on 32+ byte ASCII runs.
- Added Utf8TranscoderTests covering all SIMD/scalar paths, with boundary and round-trip tests for ASCII, Hungarian, CJK, emoji, and mixed content, ensuring correctness and BCL compatibility.
.NET 9 core framework providing serialization (Binary, JSON, Toon), entity abstractions, database access, services, and shared utilities. Used as the foundation layer for AyCode applications.
LLM Context
Domain rules and key pitfalls live in a single file: .github/copilot-instructions.md
Tool
Auto-loaded
Action needed
GitHub Copilot
✅copilot-instructions.md
None
Claude Code
✅CLAUDE.md → references above
None
Cursor / Windsurf
✅README.md
Read copilot-instructions.md via @file
Solution-level docs in docs/:
Document
Topic
GLOSSARY.md
Core terminology reference
ARCHITECTURE.md
Solution layers, dependency rules
CONVENTIONS.md
Coding conventions
Project-level docs — each project's docs/ folder documents the code it defines:
Project
Documents
AyCode.Core/docs/
BINARY/ (README, FORMAT, FEATURES, OPTIONS, …), LOGGING/ (README, ISSUES, TODO)
Loretta
304a4a7bdb