3rd fix buggy install in requirements.txt

Dockerfile

@@ -10,12 +10,14 @@ RUN apt-get update && apt-get install -y \
 
 # Copy requirements and install Python packages
 COPY requirements.txt .
+# Install dependencies (prefer binaries to avoid builds)
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel
 # Install torch from CPU wheels explicitly to avoid source builds
-RUN pip install --no-cache-dir \
+RUN pip install --no-cache-dir --prefer-binary \
     torch==2.2.2 \
     --index-url https://download.pytorch.org/whl/cpu \
     --extra-index-url https://pypi.org/simple
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir --prefer-binary -r requirements.txt
 
 # Copy application code
 COPY . .