## Summary

Omarchy packages herdr and ships its config, but herdr's desktop notifications show in the Omarchy shell with no icon and nothing identifying them as herdr. They are also treated as throwaway noise, so an agent finishing while do-not-disturb is on never reaches notification history.

## Steps to reproduce

1. Set `[ui.toast] delivery = "system"` in `~/.config/herdr/config.toml` and run `herdr server reload-config`.
2. Run `herdr notification show "test" --body "hello"`, or let an agent finish in a background tab.

## What happens

herdr 0.8.2 posts through a bare `notify-send`. Captured with `dbus-monitor`:

```
member=Notify
   string "notify-send"      # app_name
   uint32 0
   string ""                 # app_icon
   string "herdr icon probe"
   string "checking what herdr sends"
   hints: urgency=1, sender-pid
```

In the shell that means:

1. No icon. `plugins/notifications/components/NotificationCard.qml` renders `image` or `iconSource(appIcon)` only, and herdr supplies neither.
2. No identity. The app name is `notify-send`, so `isEphemeral` in `plugins/notifications/Service.qml` classes it as ephemeral. Under do-not-disturb a "finished" or "needs input" toast is silenced and not recorded.

## Suggested changes

- Move the packaged herdr from 0.8.2 to 0.9.x. Since then `src/platform/linux.rs` runs `notify-send --app-name Herdr -- <title> <body>`, which fixes the identity and the ephemeral classification.
- Ship a herdr icon. The herdr package installs only the binary and a licence; upstream has `assets/logo.svg`.
- Have the shell show that icon for notifications whose app name is `Herdr`, since herdr passes no `--icon` even on 0.9.3. A lookup from app name to icon when `app_icon` is empty would do it.

## Workaround

`delivery = "terminal"` routes the notification through Ghostty, which gives it Ghostty's icon and a real app name.

## Versions

- omarchy 4.0.4-1
- herdr 0.8.2-1 (omarchy repo)
- quickshell 0.3.1-1
- libnotify 0.8.8-1