Major refactor: split AcToonSerializer.MetaSection.cs into focused modules for meta writing, type/enum definitions, navigation, foreign key, validation, descriptions, placeholders, topological sort, and attribute detection. Extend ToonDescriptionAttribute with BusinessRule, TypeRelation, and RelatedTypes for richer metadata. Add ToonTypeRelation constants. Annotate all DTOs with ToonDescription for type relationships. Refactor TypeMetadataBase for customizable ignore filters. Update tests and settings. Improves maintainability, extensibility, and metadata accuracy.
- Remove redundant constraints (nullable, numeric, boolean) from metadata; only explicit [Required] is documented.
- Exclude enum values from constraints; add "readonly" for readonly/init-only properties.
- Filter out primitives from documented types; only complex types and enums are included.
- Detect and document enum backing fields with "enum-type" constraint.
- Only output descriptions if explicitly provided; no fallback/inferred text.
- Add "not-mapped" constraint for [NotMapped]/[NotColumn] properties.
- Switch FruitBankHybrid.Shared.Tests.csproj to direct AyCode.Core project reference.
- Add both LinqToDB and DataAnnotations [Table] attributes to DTOs for ORM compatibility.
Loretta