Improve LinkedIn UI and scheduling robustness

- When LinkedIn is connected, replace the Connect button with a pencil
  (test post to first personal profile) and a reconnect arrow icon
- Add Process Now button to the Schedule tab that shells out to the cron
  script on demand and shows its output inline
- Add flock() to the cron script to prevent overlapping runs
- Fix cron install path comment to match deployed location

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

bin/process-scheduled-posts.php

@@ -2,13 +2,17 @@
 /**
  * Cron-driven scheduled social post processor.
  *
- * Install once on the host (as the apache user):
- *   * * * * * /usr/bin/php /opt/hackmancms/bin/process-scheduled-posts.php >> /var/log/hackman_scheduled_posts.log 2>&1
+ * Install once on the host (as root, in /etc/cron.d/hackmancms):
+ *   * * * * * www-data /usr/bin/php /var/www/html/hackmancms/bin/process-scheduled-posts.php >> /var/log/hackman_scheduled_posts.log 2>&1
  */
 
 define('ROOT', dirname(__DIR__));
 require ROOT . '/lib/bootstrap.php';
 
+// Prevent overlapping runs
+$_lock_fp = fopen(sys_get_temp_dir() . '/hackman_schedule.lock', 'c');
+if (!$_lock_fp || !flock($_lock_fp, LOCK_EX | LOCK_NB)) exit(0);
+
 $now = gmdate('Y-m-d H:i:s');
 
 // Load all due pending targets grouped by post

views/project/_tab_botconfig.php

@@ -53,9 +53,17 @@
         <div class="small fw-semibold" id="liConnectionLabel">Checking…</div>
         <div class="text-muted small" id="liTokenExpiry"></div>
       </div>
-      <button class="btn btn-sm btn-outline-primary ms-auto" id="liConnectBtn">
-        <i class="bi bi-box-arrow-in-right me-1"></i>Connect LinkedIn
-      </button>
+      <div class="ms-auto d-flex gap-2 align-items-center">
+        <button class="btn btn-sm btn-outline-primary" id="liConnectBtn">
+          <i class="bi bi-box-arrow-in-right me-1"></i>Connect LinkedIn
+        </button>
+        <button class="btn btn-sm btn-outline-secondary d-none" id="liTestPostBtn" title="Test post to LinkedIn">
+          <i class="bi bi-pencil-square"></i>
+        </button>
+        <button class="btn btn-sm btn-outline-secondary d-none" id="liReconnectBtn" title="Reconnect OAuth">
+          <i class="bi bi-arrow-clockwise"></i>
+        </button>
+      </div>
     </div>
   </div>
 

views/project/_tab_botschedule.php

@@ -74,7 +74,15 @@
   </div>
 
   <!-- Post list -->
-  <h6 class="mb-3">Scheduled &amp; Recent Posts</h6>
+  <div class="d-flex align-items-center gap-2 mb-3">
+    <h6 class="mb-0">Scheduled &amp; Recent Posts</h6>
+    <button class="btn btn-sm btn-outline-secondary ms-auto" id="schedRunNowBtn" title="Process all due posts now">
+      <i class="bi bi-play-circle me-1"></i>Process Now
+    </button>
+  </div>
+  <div id="schedRunNowOutput" class="d-none mb-2">
+    <pre class="bg-body-secondary border rounded p-2 small mb-0" id="schedRunNowPre" style="max-height:160px;overflow:auto"></pre>
+  </div>
   <div id="schedPostsList"><div class="text-muted small">Loading…</div></div>
 
 </div>

web/api/post_schedule.php

@@ -103,6 +103,15 @@ if ($action === 'delete') {
     exit;
 }
 
+// ── RUN NOW ───────────────────────────────────────────────────────────────────
+if ($action === 'run_now') {
+    $script = ROOT . '/bin/process-scheduled-posts.php';
+    if (!file_exists($script)) { echo json_encode(['error' => 'Cron script not found']); exit; }
+    $output = shell_exec('/usr/bin/php ' . escapeshellarg($script) . ' 2>&1');
+    echo json_encode(['ok' => true, 'output' => $output ?? '(no output)']);
+    exit;
+}
+
 // ── RETRY FAILED TARGET ───────────────────────────────────────────────────────
 if ($action === 'retry_target') {
     $target_id = (int)($input['target_id'] ?? 0);

web/assets/js/app.js

@@ -3469,13 +3469,25 @@ window.addEventListener('DOMContentLoaded', () => {
     label.textContent = connected ? 'Connected to LinkedIn' : 'Not connected';
     label.className = 'small fw-semibold ' + (connected ? 'text-success' : 'text-muted');
     expiry.textContent = li.token_expiry ? 'Expires: ' + li.token_expiry : '';
+    document.getElementById('liConnectBtn').classList.toggle('d-none', connected);
+    document.getElementById('liTestPostBtn').classList.toggle('d-none', !connected);
+    document.getElementById('liReconnectBtn').classList.toggle('d-none', !connected);
   }
 
-  document.getElementById('liConnectBtn').addEventListener('click', async () => {
+  async function _liOAuthRedirect() {
     const r = await fetch('/api/linkedin_auth?project_id=' + pid);
     const d = await r.json();
     if (d.error) { showError(d.error); return; }
     window.location.href = d.url;
+  }
+  document.getElementById('liConnectBtn').addEventListener('click', _liOAuthRedirect);
+  document.getElementById('liReconnectBtn').addEventListener('click', _liOAuthRedirect);
+
+  document.getElementById('liTestPostBtn').addEventListener('click', () => {
+    const pages = _config?.linkedin?.pages || {};
+    const personalKey = Object.keys(pages).find(k => pages[k].type === 'personal');
+    if (!personalKey) { showError('No personal LinkedIn profile configured — add one under LinkedIn Pages.'); return; }
+    openComposeModal('linkedin', personalKey, pages[personalKey].label || personalKey);
   });
 
   function renderLinkedinPages(pages) {
@@ -3749,6 +3761,24 @@ window.addEventListener('DOMContentLoaded', () => {
     }));
   }
 
+  document.getElementById('schedRunNowBtn')?.addEventListener('click', async () => {
+    const btn    = document.getElementById('schedRunNowBtn');
+    const outBox = document.getElementById('schedRunNowOutput');
+    const pre    = document.getElementById('schedRunNowPre');
+    btn.disabled = true;
+    outBox.classList.add('d-none');
+    const r = await fetch('/api/post_schedule', {
+      method: 'POST', headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ project_id: +pid, action: 'run_now' }),
+    });
+    const d = await r.json();
+    btn.disabled = false;
+    if (d.error) { showError(d.error); return; }
+    pre.textContent = d.output || '(no output — nothing due)';
+    outBox.classList.remove('d-none');
+    loadPosts();
+  });
+
   loadTargets();
   loadPosts();
 })();