Force rebuild by breaking Docker cache

Dockerfile

@@ -37,6 +37,9 @@ RUN pip install --upgrade pip wheel \
     && pip install flash-attn==2.7.3 --no-build-isolation \
     && pip install -e /app/star-vector --no-build-isolation
 
+# Force cache invalidation - update this timestamp to rebuild
+RUN echo "Build timestamp: 2026-02-27 06:14:00"
+
 # Copy Space app (updated with torch_dtype fix)
 COPY app.py /app/app.py