## What happened

On plugins.omarchy.org, first-party plugin detail pages show an "Add to bar" command that doesn't work. Example: https://plugins.omarchy.org/plugin.html?id=omarchy.tray shows:

```
❯ omarchy bar plugin add omarchy.tray
```

Running it fails:

```
$ omarchy bar plugin add omarchy.tray
omarchy-bar: unknown command: plugin
```

`omarchy bar` has no `plugin` subcommand — `plugin` is its own top-level command group. Even corrected to `omarchy plugin add omarchy.tray`, it still wouldn't work: `omarchy-plugin-add` always requires a git URL and clones a repo (see its usage: `omarchy plugin add [git-url] [--enable] [--yes]`); it has no code path for a bare first-party plugin id.

For a plugin that already ships with Omarchy (like `omarchy.tray` or `omarchy.tailscale`), the correct command is:

```
omarchy plugin enable omarchy.tray
```

## Expected behavior

The "Add to bar" command shown for first-party/bundled plugins should be `omarchy plugin enable <id>`, not `omarchy bar plugin add <id>`.

For comparison, third-party plugin pages generate the correct command already — e.g. https://plugins.omarchy.org/plugin.html?id=crmne.hyprmoncfg correctly shows:

```
omarchy plugin add https://github.com/crmne/omarchy-hyprmoncfg.git --enable
```

So the bug appears specific to how the site templates the copyable command for first-party plugins.

## Steps to reproduce

1. Visit any first-party plugin page on plugins.omarchy.org, e.g. `?id=omarchy.tray` or `?id=omarchy.tailscale`.
2. Copy the "Add to bar" command shown.
3. Run it in a terminal on an Omarchy system.
4. Observe: `omarchy-bar: unknown command: plugin`.

## System details

- `omarchy version`: 4.0.3-1