feat: Implement mfr truncation fix and enhance invoice handling

- Added a new SQL script to address the "String or binary data would be truncated" error in mfr sync by widening the Note fields in service objects and companies to NVARCHAR(MAX).
- Updated the table types and associated stored procedures to accommodate the changes, ensuring compatibility with existing data.
- Queued a re-sync for previously rejected rows due to truncation issues.
- Created application logins for fuchs_fds and fuchs_web with placeholder passwords for initial setup.
- Introduced functions for invoice backdating and invoice date retrieval to streamline invoice processing.
- Developed a password generation function with customizable parameters for length and character types.
- Added a random number generation function to support password creation.

Fuchs/wwwroot/web/fis.css

@@ -1309,6 +1309,21 @@ div.modal > .modal-dialog > .modal-content .modal-header, div.modal > .modal-dia
 div.modal > .modal-dialog > .modal-content .modal-header + div, div.modal > .modal-dialog > .modal-content .modal-body + div, div.modal > .modal-dialog > .modal-content .modal-footer + div, div.modal > .modal-dialog > .modal-content .modal-note + div {
   border-top: 1px solid #e5e5e5;
 }
+div.modal > .modal-dialog > .modal-content .modal-body {
+  /* admin "Rechnungsdatum Vormonat" option in the invoice preview dialog (ADR 0032) */
+}
+div.modal > .modal-dialog > .modal-content .modal-body > .imagecollection > label.backdate {
+  display: block;
+  margin: 0 0 1rem 0;
+  padding: 0.5rem 1rem;
+  background-color: #fff8e1;
+  border: 1px solid #f0c36d;
+  font-weight: bold;
+  cursor: pointer;
+}
+div.modal > .modal-dialog > .modal-content .modal-body > .imagecollection > label.backdate > input {
+  margin-right: 0.5rem;
+}
 div.modal > .modal-dialog > .modal-content .modal-body > .choicefrm {
   padding: 1rem;
 }