Bug bash 6: the phone fits ZFS, Usage and journal lines; a snapshot's default name is local time; twelve smaller faults

Found by a headless pass over every page on every machine at desktop and phone widths, then
every interaction on the hub. BUGS.md has the list, what was checked and found fine, and the
quality-of-life notes to discuss.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

web/src/Machines.tsx

@@ -54,7 +54,10 @@ export default function Machines({ hub, onChanged, onOpen }: { hub: Me; onChange
     try {
       let res = await api.updateAllMachines()
       const busy = res.filter((r) => !r.ok && (r.error ?? '').startsWith('busy:'))
-      if (busy.length && await askYes(`${busy.map((r) => r.name).join(', ')}: ${busy[0].error?.slice(6)}\n\nForce those too?`)) res = res.map((r) => r).concat(await api.updateAllMachines(true))
+      if (busy.length && await askYes(`${busy.map((r) => r.name).join(', ')}: ${busy[0].error?.slice(6)}\n\nForce those too?`)) {
+        const forced = await api.updateAllMachines(true)
+        res = res.filter((r) => !forced.some((f) => f.name === r.name)).concat(forced) // one line per machine, the forced answer winning
+      }
       for (const r of res) toast(r.ok ? `${r.name} → ${r.version}` : `${r.name}: ${r.error}`, r.ok ? 'ok' : 'err')
       setTimeout(load, 4000)
     } catch (e) { toast(e instanceof Error ? e.message : 'failed', 'err') }