Refactor docs: topic folders, TOON, XCUT, protocol sync
- Migrated all topic documentation into dedicated folders with canonical `README.md`, `ISSUES.md`, and `TODO.md` per topic (e.g., `LOGGING/`, `SIGNALR/`, `BINARY/`, `TOON/`).
- Added comprehensive TOON serializer documentation: design, format, options, attributes, inference, issues, and TODOs.
- Introduced `XCUT` folder for cross-cutting issues and TODOs, with canonical entries and topic cross-references.
- Updated all references and navigation to use new folder-based doc paths; fixed links and clarified doc structure.
- Enhanced AI agent protocol: enforce session skill preloading, `[LOADED_DOCS: ...]` short-name prefix, and mandatory `docs-check` skill for doc/code sync.
- Updated `.csproj` to include all `README.md` files for IDE visibility.
- Improved and clarified SignalR, grid, and project-level documentation.
- Minor code/test tweaks and doc content corrections for consistency.
Split MGGRID.md into focused docs (parameters, CRUD, layout, detail, rendering, InfoPanel, toolbar, columns, datasource) under AyCode.Blazor.Components/docs/. Updated all references, READMEs, and project/solution files to match new structure. Clarified doc layering conventions and core doc links. No code changes—documentation and project organization only.
Expanded and clarified solution/project documentation:
- Added all top-level docs and docs/ folder as solution items in .sln files
- Inserted maintenance notices in all project and subfolder READMEs: require .md sync with code
- Main READMEs now include project tables with TFM, purpose, and README links
- ARCHITECTURE.md now details dependency graph and TFM rationale
- CONVENTIONS.md and copilot-instructions.md require code reuse, no redundancy
- Glossary and conventions updated to require terminology/rule updates with code changes
- Emphasized DLL-only AyCode.Core refs and nopCommerce .NET 9.0 requirement
- Clarified domain terms and intentional typos
- No code logic changes; documentation and guidance only
Replaced AcToonSerializer.Serialize with SerializeTypeMetadata<FullProcessModel> in ToonTests. The test now serializes only the type metadata for FullProcessModel using the domain description, rather than serializing the actual data instance. Assertions and comments remain unchanged.