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_Database/dbo/Tables/mfr__companies.sql

@@ -9,7 +9,7 @@
     [MappingId]              NVARCHAR (255) NULL,
     [ExternalId]             NVARCHAR (255) NULL,
     [Name]                   NVARCHAR (255) NULL,
-    [Note]                   NVARCHAR (255) NULL,
+    [Note]                   NVARCHAR (MAX) NULL,
     [SupportTelephone]       NVARCHAR (255) NULL,
     [SupportFax]             NVARCHAR (255) NULL,
     [SupportMail]            NVARCHAR (255) NULL,