fusion

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gsxdsm 9002fca9de FN-8497: reduce merge gate wall time

Keep merge-gate coverage focused while running its independent test lanes concurrently.

- Limit PostgreSQL gate coverage to lifecycle and transactional-handoff canaries.
- Run engine and PostgreSQL gate lanes concurrently while preserving failure propagation.
- Enforce canary coverage policy and refresh velocity documentation and history.

Files changed:
 docs/test-velocity-baseline.md                     |  16 +--
 docs/testing.md                                    |   5 +-
 package.json                                       |   2 +-
 packages/core/package.json                         |   2 +-
 .../__tests__/engine-vitest-gate-policy.test.mjs   |  79 +++++++++++++-
 scripts/test-velocity-history.json                 | 115 +++++++++++++++++++++
 6 files changed, 204 insertions(+), 15 deletions(-)

Fusion-Task-Id: FN-8497
Fusion-Task-Lineage: 8777959c-6d8c-4686-a975-d91af2c169ea
Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>

2026-07-22 15:47:24 -07:00