feat: add HITL approval gateway for production ADK agent workflows#110

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garythomasgeorge wants to merge 3 commits intogoogle:mainfrom

garythomasgeorge:feat/hitl-approval-gateway

Commits on Mar 24, 2026

feat(hitl): Implement human-in-the-loop approval gateway
garythomasgeorge
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fix(hitl): inject supervisor decision context into LLM tool response payload
garythomasgeorge
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Commits on May 5, 2026

fix(hitl): address review feedback from PR #110
garythomasgeorge
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