Monaco editor playground broken after upgrades

[Danielku15]

Is there an existing issue for this?

• I have searched the existing issues

I have read the contribution rules

• I have read CONTRIBUTING.md and, if any AI agent helped draft this issue, AGENTS.md.

AI authorship

Written by a human, no AI assistance

Current Behavior

The latest upgrade of language-server and Monaco related dependencies, we broke the Monaco editor integration in the playground (and anyone using our Monaco packages).

Expected Behavior

The Monaco integration should work again without bundling or runtime errors raised.

Steps To Reproduce

1. use alphaTab repo
2. npm run dev
3. Open the editor demo.

Link to jsFiddle, CodePen, Project

No response

Version and Environment

alphaTab.Environment.printEnvironmentInfo()
Logger.ts:24 [AlphaTab][VersionInfo] alphaTab 1.9.0
Logger.ts:24 [AlphaTab][VersionInfo] commit: 95bd8109468ccb4e61d14362e82671cfbc7cc7ce
Logger.ts:24 [AlphaTab][VersionInfo] build date: 2026-08-09T08:14:06.409Z
Logger.ts:24 [AlphaTab][VersionInfo] High DPI: 2.1500000953674316
Logger.ts:24 [AlphaTab][VersionInfo] Platform: BrowserModule
Logger.ts:24 [AlphaTab][VersionInfo] WebPack: false
Logger.ts:24 [AlphaTab][VersionInfo] Vite: false
Logger.ts:24 [AlphaTab][VersionInfo] Browser: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36
Logger.ts:24 [AlphaTab][VersionInfo] Window Size: 1778x952
Logger.ts:24 [AlphaTab][VersionInfo] Screen Size: 1920x1080
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Platform

Web

Anything else?

No response