Add CV template preview and PDF export pipeline

Models/JobApplication.cs

@@ -46,6 +46,7 @@ public class JobApplication
     public DateTime? TailoredCvUpdatedAt { get; set; }
     public DateTime? LastReminderEmailSentAt { get; set; }
 
+    public TailoredCvDraft? TailoredCvDraft { get; set; }
     public List<Correspondence> Messages { get; set; } = new();
     public List<Attachment> Attachments { get; set; } = new();
     public List<JobEvent> Events { get; set; } = new();