Fix Dockerfile: apply OpenRouter patch + custom start script

Dockerfile

@@ -26,11 +26,17 @@ RUN uv sync --no-dev --frozen
 # Copy built frontend
 COPY --from=frontend-builder /source/frontend/dist ./static/
 
-# Override config to use Anthropic API directly (not AWS Bedrock)
+# Override config
 COPY configs/frontend_agent_config.json ./configs/frontend_agent_config.json
 
+# Copy OpenRouter patch
+COPY patches/openrouter_patch.py ./patches/openrouter_patch.py
+
+# Custom start script that applies patch before starting backend
+COPY start_patched.sh ./backend/start.sh
+
 # Create directories
-RUN mkdir -p /app/session_logs && chown -R user:user /app
+RUN mkdir -p /app/session_logs /app/patches && chown -R user:user /app
 
 USER user
 ENV HOME=/home/user \