feat(drive): start implementation of drive

- add storage.drives
    - prepare migration phase
    - add created_by and updated_by on storage.folders

src/application/services/recipient_notification_service.rs

@@ -472,6 +472,11 @@ impl RecipientNotificationService {
         let kind_key = match resource {
             Resource::Folder(_) => "server.magic_link.email.kind_folder",
             Resource::File(_) => "server.magic_link.email.kind_file",
+            // Drives don't generate share notifications in D0 — drive
+            // sharing lands in D2 and gets its own template key. Fall
+            // back to the folder label so any path that does reach
+            // here produces a readable, if generic, mail body.
+            Resource::Drive(_) => "server.magic_link.email.kind_folder",
         };
         let kind_label = self.i18n_or(kind_key, &locale, &[]).await;
         // Short form for the subject, long form (with email) for the