[EPIC] Add Success Message & Actions

[SeamusMullan]

Show success message with post-generation actions.

Objectives

• Display success message
• Show project location
• Add "Open in IDE" action
• Add "Open in Finder" action
• Add "Close" action

Linked Tasks

• Create success message dialog
• Implement "Open in IDE" (VSCode, Xcode, CLion)
• Implement "Open in Finder" path opening
• Add styling for success state
• Add celebration animation

Success Criteria

• Success message shows correctly
• Actions work across OSes (macOS, Linux, Windows)
• Icons and styling look good
• User can easily navigate to project

Timeline

• Start: 2026-04-23
• End: 2026-04-25
• Duration: 3 days