Feature

Implement remaining Settings menu items that are currently placeholders.

Requirements

• Choose Radio / SmartLink Setup — radio selection dialog with SmartLink
• FlexControl — FlexControl knob configuration
• Network — network diagnostics and quality settings
• Memory — memory channel management
• Spots — DX spot configuration (cluster servers, filters)
• multiFLEX — multiFLEX dashboard and settings
• Autostart CAT with SmartSDR — auto-launch CAT interface
• Autostart DAX with SmartSDR — auto-launch DAX virtual audio

Current State

Settings menu exists with all items listed but most open placeholder dialogs or do nothing.