fix(providers): PR #495 follow-ups — copilot 401 retry, real SSE streaming, device-flow errors, gemini env keys (#501) - #502

fix(providers): PR #495 follow-ups — copilot 401 retry, real SSE streaming, device-flow errors, gemini env keys (#501)#502

Milhouszhang merged 4 commits into

berabuddies:masterberabuddies/puffer:masterfrom

Milhouszhang:fix/501-pr495-followupsMilhouszhang/puffer:fix/501-pr495-followupsCopy head branch name to clipboard