[meta] SwiftUI Port of FileKitty Interface

[banagale]

Tracked Tasks

• Build minimal SwiftUI shell (file tree + prompt display) #71 Build minimal SwiftUI shell (file tree + prompt display)
• Bridge SwiftUI to Python via CLI or PythonKit #72 Bridge SwiftUI to Python via CLI or PythonKit
• Define Python ⇆ Swift boundary #73 Define Python ⇆ Swift boundary
• Publish SwiftUI alpha release (.app / .dmg) #74 Publish SwiftUI alpha release (.app / .dmg)