AI generation, taskboard, and desktop stability fixes

Improvements

• Consistent taskboard toolbar.. The taskboard toolbar controls now share a uniform appearance and behavior, and overdue tasks are highlighted by default.
• More accurate client sentiment in meeting notes.. Meeting note generation no longer introduces client concerns that were not raised in the conversation.
• Meeting note generation completes on longer meetings.. Generating meeting notes no longer fails on longer, more involved conversations that could previously stop short.
• The desktop app launches reliably.. Fixed a crash that could occur when opening the desktop app.
• The desktop installer builds again.. Fixed a failure that prevented the desktop installer from building.