ButcherCraft: Farm to Table

# ButcherCraft 0.6.9 – Datapack Products

## New

- Added datapack-backed product definition loading.
- Added canonical product serialization and deserialization.
- Migrated all current Grinder and Bandsaw products into bundled JSON files.
- Added combined product and transformation content reload support.
- Added atomic content snapshot activation.

## Improvements

- Products now load before transformations.
- Transformations validate against the candidate Product Registry during reload.
- Product and Transformation Registries now activate together.
- Invalid content leaves the complete previous registry snapshot active.
- Added structured validation for malformed or unsupported product definitions.
- Preserved existing Grinder and Bandsaw gameplay.

## Validation

Product datapacks now detect:

- Duplicate product IDs
- Missing IDs or display names
- Unsupported schema versions
- Unknown categories
- Unknown quantity units
- Malformed tags
- Malformed metadata
- Malformed JSON
- Invalid product definitions

## Technical Highlights

- Product JSON resources
- Canonical serialized product schema
- Candidate-registry validation
- Atomic product and transformation registry activation
- Reload-safe failure handling
- Pure Java product and transformation domains
- Expanded regression and dependency testing

## Early Beta Notice

ButcherCraft is still in active development.

This release completes the data-driven foundation for products and
transformations. Future updates will focus increasingly on expanded fabrication
content, additional cuts, and longer processing workflows.