Electron App: Settings & configuration

[jongio]

Overview

Settings modal with all 10 configurable fields, reading/writing the shared config.json.

Acceptance Criteria

• Settings modal opens with ',' key
• 10 fields: Yolo Mode (toggle), Agent (text), Model (text), Launch Mode (select), Pane Direction (select), Terminal (select from detected), Shell (select from detected), Custom Command (text), Theme (select), Crash Recovery (toggle)
• Reads from existing dispatch config.json (shared with TUI)
• Writes back with file locking to prevent conflicts with TUI
• Config migration support (version field)
• Validation: invalid values show error inline
• Changes apply immediately (no restart needed)
• Reset to defaults button per field
• Config file location displayed (clickable to open in file manager)

Config File Location

• Windows: %APPDATA%/dispatch/config.json\
• macOS: ~/Library/Application Support/dispatch/config.json\
• Linux: ~/.config/dispatch/config.json\

Notes

• Same JSON schema as Go config package
• File locking via proper-lockfile to prevent race with TUI
• Schema version migration matches Go's currentConfigVersion