feat(settings): add global proxy settings with runtime apply#2002

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liu-qingyuan wants to merge 8 commits intoAndyMik90:developfrom

liu-qingyuan:feat/global-proxy-settings

Commits on Apr 9, 2026

fix(proxy): add oauth refresh timeout and env fallback normalization
liu-qingyuan
committed
fix(auth): keep existing refresh token when refresh response omits it
liu-qingyuan
committed