upstash-workflow

Upstash Workflow + QStash implementation guide for LobeHub — 3-layer architecture (process → paginate → execute), fan-out patterns. Use when creating an async workflow, implementing fan-out (paginate → execute), or wiring `serve()` + `context.run` / `context.call` steps. Triggers on `serve()`, `context.run`, `context.call`, `context.sleep`, `qstash`, 'async workflow', 'fan-out workflow', 'QStash workflow'.