prune: fix workerid issues

properly encode the namespace as separate field both for manual prunes
and the job. fix the access checks as well now that the job doesn't use
the jobid as workerid anymore.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

src/server/prune_job.rs

@@ -104,14 +104,17 @@ pub fn do_prune_job(
 
     let worker_type = job.jobtype().to_string();
     let auth_id = auth_id.clone();
+    let worker_id = format!("{store}");
     let upid_str = WorkerTask::new_thread(
         &worker_type,
-        Some(job.jobname().to_string()),
+        Some(worker_id),
         auth_id.to_string(),
         false,
         move |worker| {
             job.start(&worker.upid().to_string())?;
 
+            task_log!(worker, "prune job '{}'", job.jobname());
+
             if let Some(event_str) = schedule {
                 task_log!(worker, "task triggered by schedule '{}'", event_str);
             }