Read the scripts dir live for the paste command, because choosing appdata moves it mid-wizard

Plugin/unraid/pages/setup.php

@@ -506,6 +506,27 @@ function vvDeferItem(btn, id, defer) {
 //
 // Only while it is still outstanding: once the mirror has joined, the partnership row in the
 // checklist above says so and a second copy of the panel is noise.
+// SCRIPTS_DIR is read live rather than baked into the page, because the wizard can MOVE it.
+//
+// Choosing appdata storage in step 1 triggers a migration, and step 2 renders in the same page
+// load — so anything PHP substituted at render time still names the pre-migration location. A
+// host that migrated was handed "bash /boot/config/plugins/varaverk/…" to paste, which does not
+// exist there. The command is the one thing on this panel that must be right: it is pasted into
+// a root terminal.
+//
+// api/setup.php?action=detect re-reads varaverk.cfg, so it reports wherever the install actually
+// ended up. Cached after the first call — the checklist re-renders on every action.
+let _vvScriptsDir = null;
+function vvScriptsDir() {
+  if (_vvScriptsDir) return Promise.resolve(_vvScriptsDir);
+  return fetch('/plugins/varaverk/api/setup.php?action=detect&_=' + Date.now())
+    .then(r => r.json())
+    .then(d => (_vvScriptsDir = (d && d.scripts_dir) || <?= json_encode(SCRIPTS_DIR) ?>))
+    // Falling back to the render-time value is still better than no command at all; it is only
+    // wrong in the case this function exists to handle, and the panel shows the path either way.
+    .catch(() => (_vvScriptsDir = <?= json_encode(SCRIPTS_DIR) ?>));
+}
+
 function vvRenderOnboardPanel(d) {
   const el = document.getElementById('vv-onboard-panel');
   if (!el) return;
@@ -513,17 +534,18 @@ function vvRenderOnboardPanel(d) {
   const pt      = (d.items || []).find(i => i.id === 'partnership');
   if (!partner || !pt || pt.ok) { el.innerHTML = ''; return; }
 
-  // Same derivation the Partnership tab uses: the command runs on THIS machine, so it must carry
-  // this machine's SCRIPTS_DIR, and the terminal link must be this machine's web terminal.
+  vvScriptsDir().then(dir => {
     el.innerHTML = '<hr class="vv-hr">'
       + '<div class="vv-cl-title">Join the partnership</div>'
       + vvRenderMirrorOnboard({
           ownerName:  vvDetectedIdentity.primary,
+          // This host's own web terminal — the command runs here, not on the owner.
           termBase:   `https://${window.location.hostname}/webterminal/ttyd/`,
-        termCmd:    <?= json_encode('bash ' . SCRIPTS_DIR . '/Partnership/partnership_onboard.sh --phase1-only') ?>,
+          termCmd:    `bash ${dir}/Partnership/partnership_onboard.sh --phase1-only`,
           phase:      vvDetectedIdentity.phase ?? 0,
           hasPartner: true,
         });
+  });
 }
 
 // Setup finishing used to change nothing on screen. The wizard simply stopped appearing on the