Copy the real selector and its timing hints into the existing whole-inventory workflow fixture. Verify sorted, disjoint complete coverage and inject a failure into each actual selected shard, keeping the required verdict fail closed instead of asserting the retired filename-parity placement.
Contract-Neutral: Consuming CI fixture alignment for whole-suite scheduling only; workflow admission, check names, runtime tests and acceptance remain unchanged.
Change-source: pulse-maintainer
The current containing main run executes all 93 smoke suites sequentially for 679 seconds. Partition the discovered inventory without maintaining an allowlist or changing recipe deadlines, and keep the existing required build check fail-closed on every shard. Exercise complete coverage, discovery failure, child failure collection and actual workflow commands.
Contract-Neutral: Product CI smoke scheduling and exhaustive gating only; no installer, application, shipped guidance, dependency, release policy, safety deadline or subsystem contract delta.
Change-source: pulse-maintainer