[PM-19279] Add prelogin response (#5511)

* Add prelogin response

* Fix test

* Fix more tests

* Fix tests

* Fix SQL warnings

* Fix difference between migration and sql SP

* Attempt to fix tests

* Attempt to fix tests

* Attempt to fix

* Fix namespace

* Attempt to fix error

* Fix different SP / migration

* Attempt to fix migration

* Fix

* Fix

util/Migrator/DbScripts/2025-03-12_00_CreateOpaqueKeyExchangeCredential.sql

@@ -25,7 +25,7 @@ CREATE OR ALTER PROCEDURE [dbo].[OpaqueKeyExchangeCredential_Create]
     @CipherConfiguration VARCHAR(MAX),
     @CredentialBlob VARCHAR(MAX),
     @EncryptedPublicKey VARCHAR(MAX),
-    @EncryptedPrivateKey TINYINT,
+    @EncryptedPrivateKey VARCHAR(MAX),
     @EncryptedUserKey VARCHAR(MAX),
     @CreationDate DATETIME2(7)
 AS
@@ -127,4 +127,157 @@ BEGIN
         [Id] = @Id
 END
 
-GO
+GO
+
+ALTER PROCEDURE [dbo].[User_DeleteById]
+    @Id UNIQUEIDENTIFIER
+WITH
+    RECOMPILE
+AS
+BEGIN
+    SET NOCOUNT ON
+    DECLARE @BatchSize INT = 100
+
+    -- Delete ciphers
+    WHILE @BatchSize > 0
+    BEGIN
+        BEGIN TRANSACTION User_DeleteById_Ciphers
+
+        DELETE TOP(@BatchSize)
+        FROM
+            [dbo].[Cipher]
+        WHERE
+            [UserId] = @Id
+
+        SET @BatchSize = @@ROWCOUNT
+
+        COMMIT TRANSACTION User_DeleteById_Ciphers
+    END
+
+    BEGIN TRANSACTION User_DeleteById
+    -- Delete OpaqueKeyExchangeCredentials
+    DELETE
+    FROM
+        [dbo].[OpaqueKeyExchangeCredential]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete WebAuthnCredentials
+    DELETE
+    FROM
+        [dbo].[WebAuthnCredential]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete folders
+    DELETE
+    FROM
+        [dbo].[Folder]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete AuthRequest, must be before Device
+    DELETE
+    FROM
+        [dbo].[AuthRequest]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete devices
+    DELETE
+    FROM
+        [dbo].[Device]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete collection users
+    DELETE
+        CU
+    FROM
+        [dbo].[CollectionUser] CU
+        INNER JOIN
+        [dbo].[OrganizationUser] OU ON OU.[Id] = CU.[OrganizationUserId]
+    WHERE
+        OU.[UserId] = @Id
+
+    -- Delete group users
+    DELETE
+        GU
+    FROM
+        [dbo].[GroupUser] GU
+        INNER JOIN
+        [dbo].[OrganizationUser] OU ON OU.[Id] = GU.[OrganizationUserId]
+    WHERE
+        OU.[UserId] = @Id
+
+    -- Delete AccessPolicy
+    DELETE
+        AP
+    FROM
+        [dbo].[AccessPolicy] AP
+        INNER JOIN
+        [dbo].[OrganizationUser] OU ON OU.[Id] = AP.[OrganizationUserId]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete organization users
+    DELETE
+    FROM
+        [dbo].[OrganizationUser]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete provider users
+    DELETE
+    FROM
+        [dbo].[ProviderUser]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete SSO Users
+    DELETE
+    FROM
+        [dbo].[SsoUser]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete Emergency Accesses
+    DELETE
+    FROM
+        [dbo].[EmergencyAccess]
+    WHERE
+        [GrantorId] = @Id
+        OR
+        [GranteeId] = @Id
+
+    -- Delete Sends
+    DELETE
+    FROM
+        [dbo].[Send]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete Notification Status
+    DELETE
+    FROM
+        [dbo].[NotificationStatus]
+    WHERE
+        [UserId] = @Id
+
+    -- Delete Notification
+    DELETE
+    FROM
+        [dbo].[Notification]
+    WHERE
+        [UserId] = @Id
+
+    -- Finally, delete the user
+    DELETE
+    FROM
+        [dbo].[User]
+    WHERE
+        [Id] = @Id
+
+    COMMIT TRANSACTION User_DeleteById
+END
+GO