chore: v2.8.21 — update progress steps, clone in background, extra SSH keys inline, today's spend

- Plugin update reports its running step (plugin-update-progress.json →
  plugin_update_progress); a hidden update or clone leaves a progress chip.
- Clone here can run in the background.
- Git identity: extra SSH keys are added inline per host (no More keys tab).
- Users: spend today (viewer's local day, ?tz_offset=).
- Prettier on the files touched since v2.8.20.

server/lib/artifacts.js

@@ -598,10 +598,9 @@ async function captureOutputsNow(laneId, sessionId) {
   const since = Date.parse(started?.started_at || "") || Date.now() - 24 * 3600 * 1000;
   const done = [];
   for (const { rel, mtimeMs } of await outputCandidates(lane, since)) {
-    const rows = sql("SELECT * FROM artifacts WHERE kind = 'file' AND lane_id = ? AND source = ?").all(
-      lane.id,
-      rel
-    );
+    const rows = sql(
+      "SELECT * FROM artifacts WHERE kind = 'file' AND lane_id = ? AND source = ?"
+    ).all(lane.id, rel);
     if (rows.some((r) => r.auto !== 1)) continue;
     const row = rows[0];
     const kept = row?.files ? JSON.parse(row.files)[0] : null;