feat(admin): Arc Reactor SETUP button — live log popup

- Replace arcSetup() confirm/toast with openModal() live popup
- Add arc_setup_log PHP backend (polls /var/log/jarvis/arc-setup.log)
- Color-coded line output: green=ok/done/active, red=error/fail, yellow=warn
- Auto-detects completion keywords and updates status header
- CLOSE button stops polling and refreshes worker table

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014p87VFec84hNaf2WpvmLrW

public_html/admin/index.php

@@ -589,6 +589,14 @@ if ($action) {
             }
             j(['lines'=>$out, 'next_line'=>$total]);
 
+        case 'arc_setup_log':
+            $logFile = '/var/log/jarvis/arc-setup.log';
+            $since   = max(0, (int)($_GET['since'] ?? 0));
+            if (!file_exists($logFile)) { j(['lines'=>[],'next_line'=>0]); }
+            $allLines = file($logFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+            $total = count($allLines);
+            if (!empty($_GET['snapshot'])) { j(['next_line'=>$total]); }
+            j(['lines'=>array_values(array_slice($allLines, $since)), 'next_line'=>$total]);
         case 'arc_status':
             $ch = curl_init('http://127.0.0.1:7474/status');
             curl_setopt_array($ch, [CURLOPT_RETURNTRANSFER=>true, CURLOPT_TIMEOUT=>5, CURLOPT_CONNECTTIMEOUT=>3]);
@@ -2327,18 +2335,66 @@ async function runIntentGenerator() {
 }
 
 async function arcSetup() {
-  if (!confirm('Run Arc Reactor setup?\n\nThis will:\n• Copy reactor.py from deploy/\n• Install Python packages\n• Install/update systemd service\n• Restart jarvis-arc')) return;
+  const modalHtml = `
-  const btn = event.currentTarget;
+    <div style="font-family:var(--mono);font-size:0.72rem;line-height:1.8">
-  btn.disabled = true; btn.textContent = '⏳ SETTING UP...';
+      <div id="as-status" style="color:var(--cyan);margin-bottom:8px;font-size:0.65rem;letter-spacing:1px">LAUNCHING...</div>
-  try {
+      <div id="as-log" style="background:#060a0e;border:1px solid var(--border);border-radius:3px;padding:10px 12px;min-height:160px;max-height:360px;overflow-y:auto;white-space:pre-wrap;font-size:0.62rem;line-height:1.7;color:var(--text-dim)">Waiting for output...</div>
-    const d = await api('worker', {type:'daemon', id:'arc_reactor', action:'setup'});
+    </div>`;
-    toast(d.msg || (d.ok ? 'Setup started' : 'Setup failed'), d.ok ? 'ok' : 'err');
+
-    setTimeout(() => { loadWorkers(); btn.disabled=false; btn.innerHTML='&#9881; SETUP'; }, 5000);
+  openModal("&#9881; ARC REACTOR SETUP", modalHtml, null, null);
-  } catch(e) {
+  document.getElementById("modalSave").textContent = "CLOSE";
-    toast('Setup failed: ' + e.message, 'err');
+  let _stop = false;
-    btn.disabled=false; btn.innerHTML='&#9881; SETUP';
+  document.getElementById("modalSave").onclick  = () => { _stop = true; closeModal(); loadWorkers(); };
+  document.getElementById("modalClose").onclick = () => { _stop = true; closeModal(); loadWorkers(); };
+
+  const logEl  = document.getElementById("as-log");
+  const statEl = document.getElementById("as-status");
+
+  const snap = await api("arc_setup_log", {snapshot:1});
+  let lastLine = snap?.next_line ?? 0;
+
+  const kick = await api("worker", {type:"daemon", id:"arc_reactor", action:"setup"});
+  if (!kick?.ok) {
+    statEl.style.color = "var(--red)";
+    statEl.textContent = "LAUNCH FAILED: " + (kick?.msg || kick?.error || "unknown");
+    return;
   }
+  statEl.textContent = "RUNNING — polling every 2s...";
+
+  async function pollLog() {
+    if (_stop) return;
+    try {
+      const res = await api("arc_setup_log", {since: lastLine});
+      if (res?.lines?.length) {
+        lastLine = res.next_line;
+        if (logEl.textContent === "Waiting for output...") logEl.textContent = "";
+        res.lines.forEach(line => {
+          const d = document.createElement("div");
+          const l = line.toLowerCase();
+          if      (l.includes("error") || l.includes("fail"))                                d.style.color = "var(--red)";
+          else if (l.includes("warn")  || l.includes("skip"))                                d.style.color = "var(--yellow)";
+          else if (l.includes("ok") || l.includes("done") || l.includes("active") ||
+                   l.includes("success") || l.includes("restart") || l.includes("enabled")) d.style.color = "var(--green)";
+          else                                                                               d.style.color = "var(--text-dim)";
+          d.textContent = line;
+          logEl.appendChild(d);
+        });
+        logEl.scrollTop = logEl.scrollHeight;
+        const joined = res.lines.join(" ").toLowerCase();
+        if (joined.includes("systemctl restart") || joined.includes("active") ||
+            joined.includes("done") || joined.includes("failed")) {
+          statEl.style.color   = (joined.includes("error") || joined.includes("fail")) ? "var(--red)" : "var(--green)";
+          statEl.textContent   = (joined.includes("error") || joined.includes("fail")) ? "SETUP FAILED" : "SETUP COMPLETE";
+          document.getElementById("modalSave").textContent = "CLOSE";
+          loadWorkers(); return;
+        }
+      }
+    } catch(e) {}
+    setTimeout(pollLog, 2000);
+  }
+  setTimeout(pollLog, 1500);
 }
+
 async function workerAction(type,id,action) {
   if (type === 'agent' && action === 'update') {
     await agentUpdateFlow(id);