Add SignatureLinkText to EmailData and template support

Introduced SignatureLinkText property in EmailData to hold signature-related text, set dynamically based on envelope type. Updated constructor to HTML-encode SignatureLinkText. Added [SIGNATURE_LINK_TEXT] to template dictionary in TemplateService for email customization.

EnvelopeGenerator.CommonServices/Models/EmailData.vb

@@ -24,15 +24,18 @@ Public Class EmailData
 
     Public ReadOnly Property EnvelopeTypeId As Integer = 0
     Public Property SignatureType As String = ""
+    Public Property SignatureLinkText As String = ""
 
     Public Sub DynamicStringsForEmails(pEnvelope As Entities.Envelope)
 
         If pEnvelope.EnvelopeTypeId = 1 Then
             SignatureType = "Signieren"
             Message = "Bitte lesen und unterzeichnen Sie dieses Dokument."
+            SignatureLinkText = " und elektronisch unterschreiben"
         ElseIf pEnvelope.EnvelopeTypeId = 2 Then
             SignatureType = "Lesen und bestätigen"
             Message = "Bitte lesen und bestätigen Sie, dieses Dokument gelesen zu haben."
+            SignatureLinkText = ""
         End If
     End Sub
 
@@ -60,6 +63,7 @@ Public Class EmailData
         EnvelopeTitle = pEnvelope.Title
         EnvelopeTypeId = pEnvelope.EnvelopeTypeId
         SignatureType = TextToHtml(SignatureType)
+        SignatureLinkText = TextToHtml(SignatureLinkText)
     End Sub
     Public Function TextToHtml(input As String) As String
         If String.IsNullOrEmpty(input) Then Return ""
@@ -101,6 +105,7 @@ Public Class EmailData
         EnvelopeTitle = pEnvelope.Title
         EnvelopeTypeId = pEnvelope.EnvelopeTypeId
         SignatureType = TextToHtml(SignatureType)
+        SignatureLinkText = TextToHtml(SignatureLinkText)
     End Sub
 
 End Class