Proposes moving fleet work-dispatch off Cosmos busy-polling onto Azure Service
Bus in a coordinator-owns-scheduling / broker-owns-delivery hybrid, fixing the
product-as-queue routing smell and the idle-poll RU cost. Includes phased
migration (M0 RU quick win -> shadow -> cutover -> scale-to-zero) with a ticked
checklist. Self-reviewed (v2) for the outbox/change-feed, message-size,
long-job lock, idempotency, and routing-model consistency issues.
Generated with [Devin](https://cli.devin.ai/docs)
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Rename agent-queue/docs/gigafactory/ to docs/GIGAFACTORY/ and update every
reference (README, system-overview code-map, and all phase job specs). Add an
index README that lists the docs and points to the companion docs in
learning_ai_common_plat. Docs-only; no behavior change.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
