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/Tables/mfr__stockmovements.sql

@@ -0,0 +1,20 @@
+CREATE TABLE [dbo].[mfr__stockmovements] (
+    [Id]                BIGINT          NOT NULL,
+    [Version]           INT             NOT NULL,
+    [Amount]            NUMERIC (10, 3) NOT NULL,
+    [AmountReceived]    NUMERIC (10, 3) NOT NULL,
+    [ExternalId]        VARCHAR (255)   NULL,
+    [ItemId]            BIGINT          NULL,
+    [ItemTypeId]        BIGINT          NULL,
+    [StockMovementType] VARCHAR (255)   NULL,
+    [State]             VARCHAR (255)   NULL,
+    [ServiceRequestId]  BIGINT          NOT NULL,
+    [WarehouseId]       BIGINT          NOT NULL,
+    [DateOfCreation]    DATETIME        NOT NULL,
+    [DateModified]      DATETIME        NOT NULL,
+    [TargetDate]        DATETIME        NOT NULL,
+    [CreatedById]       BIGINT          NOT NULL,
+    [ConfirmedById]     BIGINT          NOT NULL,
+    CONSTRAINT [PK_mfr__stockmovement] PRIMARY KEY CLUSTERED ([Id] ASC)
+);
+