Version 6.4.6

UML Assistant fix for adding attributes and methods, plus a new CRM template.

Bug Fixes

UML Assistant Cannot Add Attributes or Methods (BESSER-WEB-MODELING-EDITOR#52) - The ClassDiagramModifier only handled modify_attribute and modify_method actions but the agent backend sends add_attribute and add_method when the user asks to add new members to an existing class. - Added add_attribute and add_method to the modifier’s supported action list, the ModelModification action type union, and implemented the corresponding handlers that create new ClassAttribute / ClassMethod elements, position them correctly, and grow the parent class bounds.

Improvements

NexaCRM Template (BESSER-WEB-MODELING-EDITOR) - Added a CRM class diagram template with 11 classes (Contact, Company, Opportunity, Task, Interaction, Tag, ScoreHistory, EnrichmentLog, GeneratedEmail, EmailTemplate, User) and 7 enumerations. - Available in the editor under Load Template → Class Diagram → NexaCRM.