fix(router): wrap aresponses streaming iterator for mid-stream fallbacks - #28215

fix(router): wrap aresponses streaming iterator for mid-stream fallbacks#28215

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BerriAI:shin_agent_oss_staging_05_20_2026BerriAI/litellm:shin_agent_oss_staging_05_20_2026from

cwang-otto:fix/aresponses-streaming-fallback-stagingcwang-otto/litellm:fix/aresponses-streaming-fallback-stagingCopy head branch name to clipboard