(bugfix) Enable rsync progress output for live real runs

Default queued and management-command backups to verbose rsync output so live
run views show progress for long-running real backups, matching dry-run
visibility.

Add a quiet-rsync escape hatch for operators who intentionally want less noisy
real-run logs.

src/pobsync_backend/management/commands/run_pobsync_backup.py

@@ -19,6 +19,7 @@ class Command(BaseCommand):
         parser.add_argument("--prefix", default=settings.POBSYNC_HOME, help="Runtime state root")
         parser.add_argument("--dry-run", action="store_true", help="Run rsync --dry-run")
         parser.add_argument("--verbose-rsync", action="store_true", help="Write itemized rsync output to the run log")
+        parser.add_argument("--quiet-rsync", action="store_true", help="Skip default rsync progress output for real runs")
         parser.add_argument("--prune", action="store_true", help="Apply retention after a successful run")
         parser.add_argument("--prune-max-delete", type=int, default=10)
         parser.add_argument("--prune-protect-bases", action="store_true")
@@ -32,6 +33,7 @@ class Command(BaseCommand):
         except HostConfig.DoesNotExist as exc:
             raise CommandError(f"Missing enabled host {host_name!r}") from exc
 
+        verbose_output = bool(options["dry_run"] or options["verbose_rsync"] or not options["quiet_rsync"])
         run = BackupRun.objects.create(
             host=host,
             run_type=BackupRun.RunType.MANUAL if options["manual"] else BackupRun.RunType.SCHEDULED,
@@ -39,7 +41,7 @@ class Command(BaseCommand):
             result={
                 "requested": {
                     "dry_run": bool(options["dry_run"]),
-                    "verbose_output": bool(options["dry_run"] or options["verbose_rsync"]),
+                    "verbose_output": verbose_output,
                     "prune": bool(options["prune"]),
                     "prune_max_delete": int(options["prune_max_delete"]),
                     "prune_protect_bases": bool(options["prune_protect_bases"]),
@@ -50,7 +52,7 @@ class Command(BaseCommand):
             run=run,
             prefix=paths.home,
             dry_run=bool(options["dry_run"]),
-            verbose_output=bool(options["dry_run"] or options["verbose_rsync"]),
+            verbose_output=verbose_output,
             prune=bool(options["prune"]),
             prune_max_delete=int(options["prune_max_delete"]),
             prune_protect_bases=bool(options["prune_protect_bases"]),