test(runtime-host): validate Windows artifact recovery

[liugddx]

Summary

• enable the production Artifact publication and owner-death recovery gate on Windows
• close fixture-owned Artifact and execution stores before releasing the root lease
• use the explicit Runtime Host fixture shutdown protocol for portable graceful teardown
• allow a larger Windows cold-start budget for recovery of the seeded Artifact catalog
• refresh the Windows skip inventory

Validation

• npm --workspace @maka/runtime run build
• npm --workspace @maka/runtime-host run build
• npm --workspace @maka/runtime-host run typecheck
• node --test packages/runtime-host/dist/__tests__/artifact-two-client-uds.test.js (passed twice before rebase and once after rebase on Windows)
• npm run windows:inventory
• git diff --check

The prerequisite Runtime Host fixture shutdown and deterministic execution-store cleanup changes are available on main through #2492. This PR now contains only the Artifact recovery gate and inventory update.

Part of #2142

[liugddx]

@jackwener @Astro-Han

[Astro-Han]

The recovery test exercises the real Runtime Host, IPC, SQLite, filesystem residue, and owner-death boundary, and I found no production correctness issue. The remaining Windows CI-lane coverage gap is non-blocking.