feat: Add kref-presence for E() on vat objects#754

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rekmarks wants to merge 11 commits intorekm/caplet-implementationfrom

rekm/kref-presence

Commits on Jan 16, 2026

refactor: Rationalize globalThis.kernel
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feat(kernel-browser-runtime): Add slot translation for E() on vat objects

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refactor(kernel-browser-runtime): Split vitest config into unit and integration

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refactor(nodejs): Migrate endoify setup to kernel-shims and fix test helpers

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fix(kernel-shims): Use relative import in node-endoify.js
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refactor(kernel-shims): Rename node-endoify to endoify-node and update configs

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fix: Build in CI before integration tests
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feat(extension): Add CapTP E() support for calling vat methods

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refactor: Rename background-kref to kref-presence for clarity

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test(kernel-browser-runtime): Add unit tests for kref-presence and convertKrefsToStandins

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refactor: Post-rebase fixup
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