The upstream gastown Go dependencies changed, causing a hash mismatch
in the fixed-output derivation. Updated vendorHash in both:
- packages/gastown/default.nix (flake packages output)
- home/roles/development/default.nix (home-manager inline build)
- Add packages/beads and packages/gastown with shared definitions
- Expose custom-beads and custom-gastown in flake packages output
- Consolidate CI from matrix (8 parallel jobs) to single job with loop
- Saves ~12 minutes of redundant nix-setup time per run
- Uses ::group:: for collapsible log sections per package
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
