cog

815a6f95 - fix: address review — propagate dict errors, DRY optional unwrap, recursive model fields

fix: address review — propagate dict errors, DRY optional unwrap, recursive model fields - Propagate errors from dict value type resolution instead of silently falling back to opaque SchemaAny (dict[str, Tensor] now errors) - Extract UnwrapOptional helper used by ResolveFieldType, resolveUnionSchemaType, and resolveFieldSchemaType (3 callsites) - resolveModelToSchemaType now uses ResolveSchemaType via resolveFieldSchemaType, supporting dict/nested types inside BaseModel fields (previously limited to primitives, Optional[T], List[T]) - Fix stale comments: Optional rejected not nullable, Iterator allows nested types - Fix garbled unicode in architecture docs, fix SchemaAny table entry