Add a single-step molecule for building and installing the gt binary.
The molecule contains one step:
- install: Build with `go build -o gt ./cmd/gt` and install with
`go install ./cmd/gt`
Added InstallGoBinaryMolecule() function and test.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add three built-in molecule definitions that are automatically seeded
during `gt install`:
- engineer-in-box: Full workflow from design to merge (5 steps)
- quick-fix: Fast path for small changes (3 steps)
- research: Investigation workflow (2 steps)
These molecules provide reusable workflow templates that polecats can
instantiate to execute multi-step procedures with proper dependency
tracking between steps.
Closes gt-4nn.4
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
