- Migrate module path to github.com/hanzoai/pack across all Go packages
- Remove legacy upstream docs and competitor brand references
- Modernize LLM.md and mise.toml for pristine Hanzo Pack builder
* rename plan inputs to layers and use deploy base layer
* runtime deps installed
* step builders can create multiple steps
* support config step deploy outputs
* optimize when we merge vs copy layers
* update snapshots
* validate the deploy layers
* fix tests
* dont add mise if no packages
* fix pruning for php
* update layer merging and snapshot tests
* dont include mise commands or variables if no packages
* update docs
* update snapshots and normalization
* add guide for adding custom steps
* support .node-version file
* fix compile errors
* update snapshot tests
zeekay
