feat: implement config inheritance via 'extends' and place lightweight floor configs in configs/floor_config/

RUN.md

@@ -34,8 +34,9 @@ venv/bin/pip install -r requirements.txt
 ```text
 chicken-counting-sukawarna-det/
 ├── configs/
-│   ├── K1-L1.yaml .. K5-L2.yaml      ← Standard floor configurations (K1-L1 to K5-L2)
-│   ├── cycle7_batch_optimized.yaml   ← Main batch processing config
+│   ├── floor_config/                 ← Lightweight floor configs (K1-L1 to K5-L2)
+│   │   ├── K1-L1.yaml .. K5-L2.yaml  ← Extends cycle7_batch_optimized.yaml
+│   ├── cycle7_batch_optimized.yaml   ← Main base batch processing config
 │   ├── cycle7_batch.yaml             ← Alternate batch config
 │   ├── mortality_config.yaml         ← Mortality (carcass) detection config
 │   ├── cameras/example_camera.yaml   ← Single-camera run config template
@@ -97,7 +98,7 @@ Then run:
 
 # Run a specific floor (e.g. Kandang 1 Lantai 1)
 PYTHONPATH=src venv/bin/python -m chicken_counter.cli batch \
-  --config configs/K1-L1.yaml \
+  --config configs/floor_config/K1-L1.yaml \
   --date 2026-06-18
 
 # Run archive scripts in test_run_folder