create ArchiveCipher table

util/Migrator/DbScripts/2025-11-13_00_AddCipherArchive.sql

@@ -0,0 +1,58 @@
+IF OBJECT_ID(N'[dbo].[CipherArchive]', N'U') IS NULL
+BEGIN
+    CREATE TABLE [dbo].[CipherArchive]
+    (
+        [CipherId]     UNIQUEIDENTIFIER NOT NULL,
+        [UserId]       UNIQUEIDENTIFIER NOT NULL,
+        [ArchivedDate] DATETIME2(7)     NOT NULL,
+
+        CONSTRAINT [PK_CipherArchive]
+            PRIMARY KEY CLUSTERED ([CipherId], [UserId])
+    );
+END;
+GO
+
+-- FK → Cipher
+IF NOT EXISTS (
+    SELECT 1
+    FROM sys.foreign_keys
+    WHERE name = N'FK_CipherArchive_Cipher'
+      AND parent_object_id = OBJECT_ID(N'[dbo].[CipherArchive]', N'U')
+)
+BEGIN
+    ALTER TABLE [dbo].[CipherArchive]
+    ADD CONSTRAINT [FK_CipherArchive_Cipher]
+        FOREIGN KEY ([CipherId])
+        REFERENCES [dbo].[Cipher]([Id])
+        ON DELETE CASCADE;
+END;
+GO
+
+-- FK → User
+IF NOT EXISTS (
+    SELECT 1
+    FROM sys.foreign_keys
+    WHERE name = N'FK_CipherArchive_User'
+      AND parent_object_id = OBJECT_ID(N'[dbo].[CipherArchive]', N'U')
+)
+BEGIN
+    ALTER TABLE [dbo].[CipherArchive]
+    ADD CONSTRAINT [FK_CipherArchive_User]
+        FOREIGN KEY ([UserId])
+        REFERENCES [dbo].[User]([Id])
+        ON DELETE CASCADE;
+END;
+GO
+
+-- Optional index for queries by user
+IF NOT EXISTS (
+    SELECT 1
+    FROM sys.indexes
+    WHERE name = N'IX_CipherArchive_UserId'
+      AND object_id = OBJECT_ID(N'[dbo].[CipherArchive]', N'U')
+)
+BEGIN
+    CREATE NONCLUSTERED INDEX [IX_CipherArchive_UserId]
+        ON [dbo].[CipherArchive]([UserId]);
+END;
+GO