[EIM-371] [Test] Add proxy isolation for GUI offline installer#285

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Fabricio-ESP wants to merge 2 commits intomasterfrom

EIM-371-test-add_proxy_isolation_GUI

Commits on Nov 26, 2025

Add proxy isolation tests for GUI installer
Fabricio-ESP
committed

Commits on Nov 28, 2025

Fix proxy import and environment handling
Fabricio-ESP
committed