feat: implement security, discovery, history, file transfer, web UI (P0-P3)

internal/notify/notify_windows.go

@@ -0,0 +1,13 @@
+//go:build windows
+
+package notify
+
+// Notifier is a no-op on Windows. Native toast notifications require a
+// registered, packaged app (or a third-party module such as BurntToast), which
+// is out of scope for a single self-contained binary.
+type notifier struct{}
+
+// New returns a no-op Windows notifier.
+func New() Notifier { return notifier{} }
+
+func (notifier) Notify(string, string) error { return nil }