feat(brew): add Homebrew systemd services and setup

[ahmedadan]

Summary

• Add systemd services and timers for automated Homebrew setup, updates, and upgrades
• Add shell integration for bash and fish with proper PATH and completions
• Include tmpfiles.d and security limits configuration for Homebrew

Changes

• brew-setup.service: One-shot service to extract pre-packaged Homebrew tarball on first boot
• brew-update.service/timer: Daily automatic brew update
• brew-upgrade.service/timer: Weekly automatic brew upgrade with safety unlinking of system-critical packages (systemd, dbus, python, bash, rpm, etc.)
• Shell integration: Profile scripts for bash and fish to set up Homebrew environment
• Bash completions: Dynamic completion loading for brew commands
• tmpfiles.d: Creates required directory structure
• limits.conf: Sets appropriate resource limits for Homebrew operations

[dosubot]

Related Documentation

Checked 12 published document(s) in 1 knowledge base(s). No updates required.

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