fix: resolve ESM-only package exports maps (fixes #1311) - #1344
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Packages whose exports map has only `import`/`types` (no `require` or `default`), such as @actions/core 3.x, failed with "Package path . is not exported" when webpack resolved them as CommonJS. Include `import` in CJS conditionNames so those packages can be bundled. `require` stays first so dual packages still prefer their CJS entry when it is listed first. Fixes vercel#1311 Co-authored-by: Emilio Schwaiger <QuarkOS@users.noreply.github.com>
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fixes #1311
ncc fails on packages whose exports map has import/types but no default/require, like @actions/core 3.x.
We add import to CJS conditionNames. require stays first so dual packages still pick CJS.
there is a unit fixture named exports-import-only.