* fix: include export-html templates in pkg/ shim for --export support (#370)
The --export command fails with ENOENT because getExportTemplateDir()
resolves to pkg/dist/core/export-html/ which doesn't exist. The build
script copies themes into pkg/dist/ but had no equivalent step for
export-html templates.
- Add copy-export-html build script mirroring copy-themes pattern
- Chain copy-export-html into the build script
- Fix .gitignore: re-negate pkg/dist/ after the catch-all dist/ rule
- Add vendor/ exception for pkg/dist/core/export-html/vendor/
- Commit template.html, template.css, template.js, and vendor/ files
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* chore: tighten .gitignore negation to specific pkg/dist subdirs
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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