release: align test selection with CI and set a measured timeout

[pengfei-threemoonslab]

Problem

The release workflow runs the full test suite serially, including timing-sensitive perf tests, inside a 15-minute budget shared with qualification checks, audits, signing, and artifact work. CI already separates correctness tests from performance tests and uses parallel execution.

A release candidate should fail for deterministic correctness evidence, not shared-runner timing noise, and its timeout should come from a rehearsal measurement rather than an estimate.

Acceptance criteria

• The release correctness suite uses the same supported parallelism as CI (currently -n auto).
• Release excludes perf-marked tests; CI remains the merge-time enforcement point for latency budgets.
• Adapter static-only tests remain covered in either the release correctness suite or an explicit prerequisite artifact.
• The release timeout is set from observed release: add a non-publishing rehearsal path #355 rehearsal timings with documented headroom.
• A workflow comment explains why CI and release test selections intentionally differ.
• Tests guard the marker/parallelism contract so future workflow edits do not silently reintroduce perf gating or serial execution.

Related

• release: separate verification from publication and make partial publish recoverable #343 owns job separation, publication ordering, concurrency, permissions, and recovery.
• release: add a non-publishing rehearsal path #355 provides the non-publishing measurement path.