Add BOM group_fields for MPN and deactivate-old CI step

- Add group_fields: [Value, Footprint, mpn] to all BOM outputs to prevent
  components with different MPNs from being merged into one row
- Add deactivate-old step to inventree_main release pipeline

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

kibot-ci.yml

@@ -388,6 +388,10 @@ inventree_main:
         # Generate Samsung P&P files only on actual release
         echo "Generating Samsung pick-and-place files..."
         python main.py samsung $CI_PROJECT_DIR/Fabrication
+
+        # Deactivate old revisions (keep only current release + dev)
+        echo "Deactivating old InvenTree revisions..."
+        python main.py deactivate-old $CI_PROJECT_DIR/Fabrication
       fi
       cd $CI_PROJECT_DIR