Bug fixes, arr cleanup API-driven scan, shared JS formatters

Bug fixes:
- fallback.sh: escape sed metacharacters (\ & |) in state_set values
- common.sh: parse PID from lock file content correctly (handles pid:metadata format)
- unraid_api_key_renew.sh: fix path depth (../../../) and sync registry key to conf when stale
- stop.php: only clear pid/status if process is actually dead — D-state survives SIGKILL
- array_started.sh: check ARRAY_START_SCRIPTS empty before printing launch header

Arr cleanup:
- radarr_cleanup.sh / sonarr_cleanup.sh: fetch root folders from arr API instead of
  reverse-looking up the path map — handles multi-root-folder setups correctly

UI:
- varaverk.js: extract shared formatters (_relTime, _fmtBytes, _sz, _uptime, _gb, _tb, _n)
- arrs.php / partnership.php: use shared formatters, remove duplicates
- arrs.php / fallback.php: show error message on fetch failure instead of silent empty
- docker.php: disable rename input during request, restore original value on failure
- setup.php: abort controller timeout on detect fetch
- partnership.php: remove Re-run Phase 2 button opacity dimming

Plugin/unraid/pages/docker.php

@@ -291,7 +291,11 @@ function _bindEvents() {
       if (!fid || !name) return;
       const f = (_data.folders||[]).find(x=>x.id===fid);
       if (f && name===f.name) return;
-      _api({action:'rename_folder',folder_id:fid,name}, r => { if(r.ok) _reload(); else alert('Rename failed: '+(r.error||'?')); });
+      el.disabled = true; el.style.opacity = '0.5';
+      _api({action:'rename_folder',folder_id:fid,name}, r => {
+        el.disabled = false; el.style.opacity = '';
+        if (r.ok) _reload(); else { alert('Rename failed: '+(r.error||'?')); el.value = f?.name ?? name; }
+      });
     });
   });