On fresh MacBook installs, the bundled qmd binary fails to run due to:
missing execute permissions, macOS quarantine attributes, and no fallback
when qmd is completely absent. This fix addresses all three issues:
- Runtime: ensure +x permissions and remove quarantine on bundled qmd
- Runtime: auto-install qmd via bun when binary not found anywhere
- Build: ad-hoc code-sign qmd and .dylib files in bundle-qmd.sh
- Build: create placeholder resource dirs so fresh clones build cleanly
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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