v1.2.0 — Split Pane, Prompt Templates, Session Groups, Embedded Panels

What's New in v1.2.0

Split Pane Terminal

• Drag a session from Sidebar to terminal area to create side-by-side split view
• Draggable split divider to adjust pane ratio
• Auto-close split when window is too small
• Only active pane shows Git/FileTree panel

Prompt Templates

• 5 built-in templates: Review Code, Write Tests, Explain Code, Fix Bug, Optimize Performance
• Custom template CRUD with dropdown panel UI
• One-click send to terminal

Session Groups

• Create/rename/delete groups via right-click context menu
• Move projects between groups
• Collapsible group sections in Sidebar

Embedded Panels

• Git/FileTree panels changed from overlay to embedded flex layout
• Panels resizable via drag handle (250-500px)
• Terminal auto-shrinks when panel opens

Window State Memory

• Window position/size/maximized state persisted across restarts
• Multi-display safety check

Full Changelog

v1.1.0...v1.2.0