Build and push backend

backend/Dockerfile

@@ -4,12 +4,15 @@ FROM harbor.dvirlabs.com/base-images/python:3.11-slim
 # Set working directory
 WORKDIR /app
 
-# Copy requirements file
+# Copy requirements file and pre-downloaded wheels
 COPY requirements.txt .
+COPY wheels/ /tmp/wheels/
 
-# Install Python dependencies
-# Note: psycopg2-binary is pre-compiled, no gcc needed
-RUN pip install --no-cache-dir -r requirements.txt
+# Install Python dependencies from local wheels (no internet needed)
+# --no-index = Don't use PyPI
+# --find-links = Look for packages in /tmp/wheels
+RUN pip install --no-cache-dir --no-index --find-links /tmp/wheels -r requirements.txt && \
+    rm -rf /tmp/wheels
 
 # Copy application code
 COPY . .