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/Functions/fds__fn_invoiceDate.sql

@@ -0,0 +1,18 @@
+-- =============================================
+-- Description:	The invoice date ("Rechnungsdatum", ADR 0032) as a German calendar day:
+--				DateFinalized (the finalisation - or, when backdated, the backdated - moment),
+--				falling back to DateCreated for drafts. Both columns are stored in UTC.
+--				SQL twin of Fuchs/code/InvoiceDates.IssueDate. Every list, report, export and
+--				reminder that shows or groups by an invoice date uses this function (ADR 0035).
+--				Also used for reminders (fds__reminder has the same DateFinalized/DateCreated pair).
+-- =============================================
+CREATE FUNCTION [dbo].[fds__fn_invoiceDate]
+(
+	@DateFinalized datetime,
+	@DateCreated datetime
+)
+RETURNS date
+AS
+BEGIN
+	RETURN CAST(ISNULL(@DateFinalized, @DateCreated) AT TIME ZONE 'UTC' AT TIME ZONE 'W. Europe Standard Time' AS date);
+END