fix(app-tools): unpack native companion libraries

[snowzane]

Summary

The published Next AI Draw.io package failed before opening a window because the scaffold's ASAR rule unpacked Sharp's native add-on but left its libvips dylib inside the archive. App Tools 0.6.3 preserves the on-disk layout of .node, .dylib, and .dll files for the supported Mac/Windows targets. Existing App-owned packagers receive the same guidance through the release skill and README.

Scope

• Component: app-tools.
• Type: packaging bug fix; no API or admission-policy change.

Verification

• App Tools suite: 135 passed, 11 platform-dependent skips.
• Component package build and standalone scaffold smoke passed.
• Package license matrix, SDK version matrix, and diff checks passed.
• The exact installed 0.4.17 Sharp add-on reproduces the missing-dylib failure; the same archive fully extracted loads Sharp 0.35.4/libvips 8.18.6.
• Real ASAR comparison with the corrected rule loads the Mac add-on; both actual Windows libvips DLLs are unpacked with matching bytes. Windows execution remains unverified.
• Corrected App package launch and business acceptance; tracked separately in the Next AI Draw.io adaptation.

pnpm --filter @nimiplatform/app-tools test
pnpm release:component:pack -- --component app-tools --output-dir dist/component-release/app-tools-0.6.3
pnpm check:package-license-matrix
pnpm check:sdk-version-matrix
git diff --check

Breaking Changes

None. Existing App-owned packagers need the documented rule; sync does not overwrite their code.

Security Impact

Low: dependency libraries remain at their original relative paths outside ASAR so the OS loader can resolve them. Publisher signing/sealing and Runtime verification remain unchanged.

Rollback Plan

No data migration. A correction to a published package uses a new version; immutable releases remain unchanged.

Docs

Updated the package README, release skill, and starter README, including the stale asar: false description.

DCO

• Commit is signed off.

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