## Summary
The desktop client renders a persistent user status (NIP-38 kind:30315,
`d:general`) as the status line on profiles, but the CLI had no way to
set it — only ephemeral presence (`set-presence`, kind:20001).
Integrations that want a scriptable, durable status line (for example a
now-playing music bridge that shows the current TIDAL track on a
profile) had no entry point.
## Screenshots
<img width="1455" height="960" alt="1"
src="https://github.com/user-attachments/assets/f1669ec6-212b-4f6e-ad53-07df9aacffc9"
/>
<img width="1455" height="960" alt="2"
src="https://github.com/user-attachments/assets/5bf70f47-e5b5-4eb0-a426-b5f1ef90d2ec"
/>
This adds:
```bash
buzz users set-status --text "Working on the relay" --emoji "🔧"
buzz users set-status --text "" --emoji "🎶" # intentional emoji-only status
buzz users set-status --clear # removes the status
```
- Signs and submits the replaceable kind:30315 event via the HTTP bridge
(no WS needed — unlike presence, user status is a stored event).
- Uses the `d:general` coordinate the desktop client already reads for
the profile status line, and the same `emoji` tag shape
`SetStatusDialog` publishes.
- Event construction lives in `buzz_sdk::build_user_status()`, keyed off
`buzz_core::kind::KIND_USER_STATUS`, so the CLI command is a thin
sign/submit wrapper. Text and emoji are trimmed; a blank emoji is
omitted rather than emitted as an empty tag.
- Clearing is the explicit `--clear` flag, mutually exclusive with
`--text`/`--emoji`. It publishes an empty-content event carrying only
`d:general`, which the desktop treats as no status. `--text ""` with an
`--emoji` is an emoji-only status, not a clear.
---------
Signed-off-by: Kagan Yaldizkaya <kagan@squareup.com>
Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: Will Pfleger <pfleger.will@gmail.com>
