Stage only the current portable Turbo task archives, metadata and available manifests for same-run artifact consumers. Share task identity/hash validation with cross-run keys and fail publication on incomplete preparation, while retaining existing cache authority and consumer build/prepack verification.
Validation: 252 focused tests, full check:ci, docs:check, check:fast, actionlint, real Turbo output equivalence and invalidation, restored CLI/MCP scenarios and full Linux package verification passed. Fault injection detected historical-entry inclusion. Exact-head hosted CI and available review passed; measurement limits are recorded in the PR.
Refs #4744.
Ysopwnable
2092f90b7e