add systray support for Windows

cmd/goose/icons.go

@@ -1,30 +1,16 @@
 package main
 
 import (
-	_ "embed"
 	"log/slog"
 	"os"
 	"path/filepath"
 )
 
-// Embed icon files at compile time for better distribution
-//
-//go:embed icons/goose.png
-var iconGoose []byte
-
-//go:embed icons/popper.png
-var iconPopper []byte
-
-//go:embed icons/smiling-face.png
-var iconSmiling []byte
-
-//go:embed icons/lock.png
-var iconLock []byte
-
-//go:embed icons/warning.png
-var iconWarning []byte
+// Icon variables are defined in platform-specific files:
+// - icons_windows.go: uses .ico files
+// - icons_unix.go: uses .png files
 
 // IconType represents different icon states
 type IconType int
 
 const (
@@ -36,7 +22,7 @@
 	IconLock                    // Authentication error
 )
 
 // getIcon returns the icon bytes for the given type
 func getIcon(iconType IconType) []byte {
 	switch iconType {
 	case IconGoose:
@@ -57,7 +43,7 @@
 	}
 }
 
 // loadIconFromFile loads an icon from the filesystem (fallback if embed fails)
 func loadIconFromFile(filename string) []byte {
 	iconPath := filepath.Join("icons", filename)
 	data, err := os.ReadFile(iconPath)

cmd/goose/icons_unix.go

@@ -0,0 +1,24 @@
+//go:build !windows
+
+package main
+
+import (
+	_ "embed"
+)
+
+// Embed PNG files for Unix-like systems (macOS, Linux)
+//
+//go:embed icons/goose.png
+var iconGoose []byte
+
+//go:embed icons/popper.png
+var iconPopper []byte
+
+//go:embed icons/smiling-face.png
+var iconSmiling []byte
+
+//go:embed icons/lock.png
+var iconLock []byte
+
+//go:embed icons/warning.png
+var iconWarning []byte

cmd/goose/icons_windows.go

@@ -0,0 +1,24 @@
+//go:build windows
+
+package main
+
+import (
+	_ "embed"
+)
+
+// Embed Windows ICO files at compile time
+//
+//go:embed icons/goose.ico
+var iconGoose []byte
+
+//go:embed icons/popper.ico
+var iconPopper []byte
+
+//go:embed icons/smiling-face.ico
+var iconSmiling []byte
+
+//go:embed icons/warning.ico
+var iconWarning []byte
+
+// lock.ico not yet created, using warning as fallback
+var iconLock = iconWarning