Add reference file copy step to mechanical workflow

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

Author: SukuWc

.github/workflows/mechanical_components.yml

@@ -51,6 +51,10 @@ jobs:
       run: |
         ./.github/workflows/openscad_preview.sh
 
+    - name: Copy reference files
+      run: |
+        find Mechanical/Design/${{ matrix.component }}/ -maxdepth 1 -name "${{ matrix.component }}*" ! -name "*.FCStd" ! -name "*.FCBak" -exec cp {} temp/ \; || true
+
     - name: Stop x11vnc
       run: pkill x11vnc