9821 Mcp Pack Unit Stall

changelog.d/fixes/9821-mcp-pack-unit-stall.md

3.8.49318 B

fix(test): remove live npm pack from MCP files unit test (it stalled concurrent test:unit via prepare→husky + monorepo pack walk); keep the static #3578 files allowlist + negation guards in unit and fold #3821 pack assertions into check:pack-artifact / check:pack-policy (already --ignore-scripts).