Add split background promotion workflow

docs/AI_PIPELINES.md

@@ -278,6 +278,24 @@ only strict background gate for default promotion, while
 `sparse_building_context` remains review-only evidence in the report. This keeps
 contextual buildings from being treated as empty-background false positives.
 
+For the Tower/runtime pass, run the split matrix and promotion report together:
+
+```bash
+PROMOTION_POSITIVE_PORTFOLIO_PATH=artifacts/detection-quality-matrix/multi-sample/aoi1024bg512r3e50-positive/multi_sample_quality_summary.json \
+OPERATOR_SAMPLE_MANIFEST_PATH=storage/operator-data/operator_samples_manifest.json \
+QUALITY_MODEL_ASSET_IDS="geointel-building-yolov8s-aoi1024bg512r3e50-pt" \
+QUALITY_TILE_SIZES="512" \
+QUALITY_TILE_OVERLAPS="64" \
+QUALITY_THRESHOLDS="0.35 0.15" \
+BACKGROUND_SPLIT_OUTPUT_DIR=artifacts/detection-hard-negatives/aoi1024bg512r3e50-split \
+PROMOTION_OUTPUT_DIR=artifacts/detection-model-promotion/aoi1024bg512r3e50-split-aware \
+bash scripts/run_split_background_promotion_workflow.sh http://192.168.10.150:1202
+```
+
+The wrapper keeps the same safety boundary: existing dataset upload, configured
+YOLO detection and report tooling only. It does not change model configuration
+or bypass the persisted QA/QC evidence requirement.
+
 The underlying single-category matrix remains available:
 
 ```bash