Version 6.4.6
=============

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

Bug Fixes
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**UML Assistant Cannot Add Attributes or Methods** (`BESSER-WEB-MODELING-EDITOR#52 <https://github.com/BESSER-PEARL/BESSER-WEB-MODELING-EDITOR/issues/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
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**NexaCRM Template** (`BESSER-WEB-MODELING-EDITOR <https://github.com/BESSER-PEARL/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*.