1688 admin work flow clean up and call api

app/Models/WorkflowTimestamp.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class WorkflowTimestamp extends Model
+{
+    use HasFactory;
+
+    /**
+     * The table associated with the model.
+     *
+     * @var string
+     */
+    protected $table = 'workflow_timestamps';
+
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = [
+        'node',
+        'seconds',
+        'userId',
+        'session_id'
+    ];
+
+    /**
+     * The attributes that should be cast.
+     *
+     * @var array
+     */
+    protected $casts = [
+        'timestamp' => 'datetime',
+    ];
+
+    /**
+     * Get the user that owns the workflow timestamp.
+     */
+    public function user()
+    {
+        return $this->belongsTo(User::class, 'userId');
+    }
+}