feat(preferences): ♻️ use koanf for agent preferences

go.mod

@@ -15,14 +15,18 @@ require (
 	github.com/charmbracelet/x/ansi v0.4.5 // indirect
 	github.com/charmbracelet/x/term v0.2.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/gorilla/websocket v1.5.1 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
@@ -45,6 +49,8 @@ require (
 	github.com/go-playground/validator/v10 v10.23.0
 	github.com/go-resty/resty/v2 v2.16.2
 	github.com/iancoleman/strcase v0.3.0
+	github.com/knadh/koanf v1.5.0
+	github.com/knadh/koanf/v2 v2.1.2
 	github.com/lmittmann/tint v1.0.5
 	github.com/lthibault/jitterbug/v2 v2.2.2
 	github.com/magefile/mage v1.15.0