Suppress toast notifications for automated executions

Automated executions (started_by gandalf: or scheduler:) no longer
trigger success/failure toast alerts for connected browser users.
Server now includes is_automated flag in command_result broadcasts.

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

public/index.html

@@ -2818,12 +2818,14 @@
                         console.log(`Error: ${data.stderr}`);
                     }
 
-                    // Show terminal notification
+                    // Show terminal notification only for manual executions
+                    if (!data.is_automated) {
                         if (data.success) {
                             showTerminalNotification('Command completed successfully', 'success');
                         } else {
                             showTerminalNotification('Command execution failed', 'error');
                         }
+                    }
 
                     // If viewing execution details, refresh that specific execution
                     const executionModal = document.getElementById('viewExecutionModal');

server.js

@@ -260,7 +260,9 @@ wss.on('connection', (ws) => {
 
         // For non-workflow executions, update status immediately
         // For workflow executions, the workflow engine will update status
-        const [execution] = await pool.query('SELECT workflow_id FROM executions WHERE id = ?', [execution_id]);
+        const [execution] = await pool.query('SELECT workflow_id, started_by FROM executions WHERE id = ?', [execution_id]);
+        const startedBy = execution.length > 0 ? (execution[0].started_by || '') : '';
+        const isAutomated = startedBy.startsWith('gandalf:') || startedBy.startsWith('scheduler:');
         if (execution.length > 0 && !execution[0].workflow_id) {
           // Only update status for quick commands (no workflow_id)
           const finalStatus = success ? 'completed' : 'failed';
@@ -274,7 +276,8 @@ wss.on('connection', (ws) => {
           worker_id: worker_id,
           success: success,
           stdout: stdout,
-          stderr: stderr
+          stderr: stderr,
+          is_automated: isAutomated,
         });
 
         console.log(`Command result received for execution ${execution_id}: ${success ? 'success' : 'failed'}`);