fix(bootstrap): secure the Homebrew trust store - #5
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Create Homebrew's trust-store directory with mode 0700 before recording the approved OpenCode tap. The shared shell umask otherwise permits group write access, which current Homebrew rejects before it can update trust.json. Honor XDG_CONFIG_HOME when present and enforce the secure-directory, trust, then bundle ordering in the portability contract.
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Summary
0700XDG_CONFIG_HOMEwhen selecting the trust pathWhy
The macOS rollout retry reached the new explicit trust step but Homebrew rejected
~/.homebrewbecause the shared shell'sumask 002had left the directory mode at0775. The trust files themselves were already0600.Verification
0775trust directory0700scripts/check-portability.shpasses