"""
TD Lang Engine — the merge/heal/validate runtime (formerly td_fuse).

All model merging, transport, healing, and validation logic lives here.
td_lang compiles .td files into Python that imports from this engine.

Architecture:
    td_lang/engine/
    ├── __init__.py          ← This file
    ├── config.py            ← Model configs, merge order, hyperparameters
    ├── canary.py            ← Canary injection + testing ("brain surgery")
    ├── transport.py         ← Wrapper around official T&M code
    ├── techniques.py        ← Advanced techniques (Theseus, ARM, OTMF, RAM, Mergeability)
    ├── merge.py             ← Sequential merge orchestrator
    ├── validate.py          ← Post-merge validation (canary, perplexity, benchmarks)
    ├── heal.py              ← QLoRA healing fine-tune via Unsloth
    └── run.py               ← Standalone entry point (optional)

Usage (via td_lang):
    python -m td_lang run td_start.td
    python -m td_lang run demo_merge.td
"""

__version__ = "0.2.0"
__author__ = "Milan (TD Project)"