Fix quick command executions not appearing in execution tab

Changes:
- Create execution record in database when quick command is sent
- Store initial log entry with command details
- Broadcast execution_started event to update UI
- Display quick commands as "[Quick Command]" in execution list
- Fix worker communication to properly track all executions

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

public/index.html

@@ -810,18 +810,18 @@
                     executions.slice(0, 5).map(e => `
                         <div class="execution-item" onclick="viewExecution('${e.id}')">
                             <span class="status ${e.status}">${e.status}</span>
-                            <strong>${e.workflow_name || 'Unknown Workflow'}</strong>
+                            <strong>${e.workflow_name || '[Quick Command]'}</strong>
                             <div class="timestamp">by ${e.started_by} at ${new Date(e.started_at).toLocaleString()}</div>
                         </div>
                     `).join('');
                 document.getElementById('dashExecutions').innerHTML = dashHtml;
-                
+
                 const fullHtml = executions.length === 0 ?
                     '<div class="empty">No executions yet</div>' :
                     executions.map(e => `
                         <div class="execution-item" onclick="viewExecution('${e.id}')">
                             <span class="status ${e.status}">${e.status}</span>
-                            <strong>${e.workflow_name || 'Unknown Workflow'}</strong>
+                            <strong>${e.workflow_name || '[Quick Command]'}</strong>
                             <div class="timestamp">
                                 Started by ${e.started_by} at ${new Date(e.started_at).toLocaleString()}
                                 ${e.completed_at ? ` • Completed at ${new Date(e.completed_at).toLocaleString()}` : ''}