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/partnership.php

@@ -593,24 +593,6 @@ function vvPtSaveSettings(btn) {
 
 // ── Helpers ───────────────────────────────────────────────────────────────────
 
-function _relTime(ts) {
-  if (!ts) return '—';
-  const d = Math.floor(Date.now() / 1000) - ts;
-  if (d < 60)     return 'just now';
-  if (d < 3600)   return Math.floor(d / 60) + 'm ago';
-  if (d < 86400)  return Math.floor(d / 3600) + 'h ago';
-  if (d < 172800) return 'yesterday';
-  return Math.floor(d / 86400) + 'd ago';
-}
-
-function _uptime(sec) {
-  if (!sec) return '—';
-  const d = Math.floor(sec / 86400);
-  const h = Math.floor((sec % 86400) / 3600);
-  const m = Math.floor((sec % 3600) / 60);
-  return d > 0 ? `${d}d ${h}h ${m}m` : h > 0 ? `${h}h ${m}m` : `${m}m`;
-}
-
 function _row(lbl, val) {
   return `<div class="vv-pt-row"><span class="vv-pt-lbl">${lbl}</span><span class="vv-pt-val">${val}</span></div>`;
 }
@@ -1083,7 +1065,7 @@ function _renderActions(nodes, cfg) {
           </div>
           <div style="display:flex;flex-direction:column;gap:5px;align-items:flex-end;">
             <button class="vv-pt-action-btn info" onclick="vvPtPhase2(this,'${remote.id}')"
-              style="opacity:.35;font-size:10px;" title="Re-run Phase 2">↻ Re-run</button>
+              style="font-size:10px;" title="Re-run Phase 2">↻ Re-run</button>
             <button class="vv-pt-action-btn warn" onclick="vvPtShowDeleteKeys('${remote.id}')"
               style="opacity:.4;font-size:10px;">🗑 Keys</button>
           </div>