* fix: address routing, media, worker and platform issues
* ci: use available Android tools and verify Windows CLI artifact
* fix(gui): return a result from asynchronous stop command
* test(android): verify installed APK and proxy lifecycle on emulator
* fix(media): use native MTProto for CDN203 and retain recent diagnostics
* Fix owned WebSocket split after transport boxing
* Clarify CDN transport and connection status guarantees
* Recognize accessible Android power button labels
* chore(release): prepare 2.0.0-beta.15 with verified draft publication
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Co-authored-by: babin <Thartewerner536e@engineer.com>
Никита Sonic