Refactor: extract UTF-8 transcoder to Utf8Transcoder
Moved all UTF-8/UTF-16 encoding, decoding, and char counting logic from AcBinarySerializer/AcBinaryDeserializer into a new internal Utf8Transcoder class. Updated all call sites to use the new class. Removed redundant private methods from the original classes. Updated BINARY_TODO.md to clarify SIMD decode status and rationale for deferring AVX2 multi-byte SIMD path. No functional changes—pure refactor for maintainability and future SIMD work.
.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)