Sync Yield from Intelligence Flow @ 6d6739a7d41f

[operator-stack-publisher]

What this sync releases

Safer responses and simpler workflow setup

• Add yskill respond so agents can answer a pending step without building a
  response file by hand.
• Serialize responses per run across processes, recover exact retries, and
  refuse conflicting content.
• Enforce declared AskUser options in the TypeScript, Python, Go, and Rust
  SDKs.
• Let yskill doctor check a workflow without requiring agent adapters, and
  keep fixture test runs temporary by default.
• Add bulk adapter registration, safe synchronization, terminal-run pruning,
  relocatable Python workflows, and deterministic fixture effects.
• Verify 40 workflow cases and eight runtime checks, including concurrent
  response admission and recovery.

Projection provenance

Generated from operatorstack/intelligence-flow@6d6739a7d41f276c2ee7619c588443a7f319b4a5.
Review provenance, tests, and examples before merging.