Added the Mathematics tools as a prototype (#1162)

app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs

@@ -21,6 +21,7 @@ public static class PreviewFeaturesExtensions
             PreviewFeatures.PRE_META_ASSISTANT_V1 => TB("Assistant Builder: Generate and install assistant plugins"),
             PreviewFeatures.PRE_VISUAL_BRIEFING_ASSISTANT_2026 => TB("Visual Briefing Assistant: Turn source material into an interactive briefing"),
             PreviewFeatures.PRE_MAILBOXES_2026 => TB("Mailboxes: Let the AI search and read your e-mails, kept in a local index on your computer"),
+            PreviewFeatures.PRE_MATHEMATICS_2026 => TB("Mathematics: Let the AI calculate exactly and work with formulas, right on your computer"),
 
             _ => TB("Unknown preview feature")
         };