Add Fuchs_Database SSDT project (schema source of truth)

Adds the SQL Server Data Tools project for the fuchs_fds database — tables,
table types, functions and stored procedures that the backend calls (e.g.
fds__getInvoice, fds__merge_bankingtransactions, fds__tt__bankingtransactions,
fds__admin_getReportCatalog, fis_* auth). Build/model caches (bin, obj,
*.dbmdl, *.jfm, *.user) are git-ignored.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Fuchs_Database/dbo/Functions/fds__updateNeed.sql

@@ -0,0 +1,25 @@
+CREATE FUNCTION [dbo].[fds__updateNeed] 
+(
+	@threshold_minutes_full int
+	,@threshold_minutes_short int
+)
+RETURNS tinyint
+AS
+BEGIN
+
+		--[Reset] = 5
+  --      [Full] = 2
+  --      [Short] = 1
+  --      [None] = 0
+
+
+
+	SET @threshold_minutes_full = 60;
+	SET @threshold_minutes_short = 8;
+
+	DECLARE @RET tinyint = 1
+	DECLARE	@UpDate datetime
+	DECLARE	@UpDateFull datetime 
+
+	RETURN @RET;
+END