fix(build): restore language server asset copy in watch:desktop

Closes #2278

See merge request !3181

Merged-by: Juhee Lee <julee@gitlab.com>
Approved-by: Mohammed Osumah <mosumah@gitlab.com>
Approved-by: Juhee Lee <julee@gitlab.com>
Co-authored-by: Duo Developer <service_account_group_9970_1976e9ecde3c53c783b64edb9ae993eb@noreply.gitlab.com>
Co-authored-by: Tristan Read <tread@gitlab.com>

feat: Add Language Server startup monitoring

See merge request !3180

Merged-by: Tristan Read <tread@gitlab.com>
Approved-by: Tristan Read <tread@gitlab.com>
Reviewed-by: Tristan Read <tread@gitlab.com>
Co-authored-by: Olena Horal-Koretska <ohoralkoretska@gitlab.com>

# **pre-release**  [6.76.0](v6.75.4...v6.76.0) (2026-05-05)
### ✨ Features

* Add Language Server startup monitoring ([1688f537](1688f537)) by Olena Horal-Koretska

### 🐛 Bug Fixes

* **build:** restore language server asset copy in watch:desktop ([37dae5b1](37dae5b1)) by Tristan Read