WIP: Migrate from GORM to sqlc - partial migration, build broken

backend/internal/db/queries/users.sql

@@ -0,0 +1,26 @@
+-- name: GetAllMailUsers :many
+SELECT * FROM virtual_users;
+
+-- name: GetUsersByDomain :many
+SELECT * FROM virtual_users WHERE domain_id = ?;
+
+-- name: GetUserByID :one
+SELECT * FROM virtual_users WHERE id = ?;
+
+-- name: GetUserByEmail :one
+SELECT * FROM virtual_users WHERE email = ?;
+
+-- name: CreateUser :exec
+INSERT INTO virtual_users (domain_id, email, password, quota) VALUES (?, ?, ?, ?);
+
+-- name: UpdateUserPassword :exec
+UPDATE virtual_users SET password = ? WHERE id = ?;
+
+-- name: UpdateUserQuota :exec
+UPDATE virtual_users SET quota = ? WHERE id = ?;
+
+-- name: DeleteUser :exec
+DELETE FROM virtual_users WHERE id = ?;
+
+-- name: CountUsersByDomain :one
+SELECT COUNT(*) as count FROM virtual_users WHERE domain_id = ?;