fix: add Python dependencies installation

- Add pip install before running Flask migrations
- Fix openai module not found error
- Improve error handling for database initialization
- Add proper working directory management

docker/entrypoint.sh

@@ -90,7 +90,14 @@ check_redis || {
 # Install Python dependencies
 cd /app/api
 echo "Installing Python dependencies..."
-pip install -r requirements.txt
+if [ -f "requirements.txt" ]; then
+    pip install --no-cache-dir -r requirements.txt
+elif [ -f "../requirements.txt" ]; then
+    pip install --no-cache-dir -r ../requirements.txt
+else
+    echo "Warning: requirements.txt not found in /app/api or /app"
+    # Continue anyway as dependencies might be pre-installed in the image
+fi
 
 # Initialize database if needed
 if [ ! -f ".db_initialized" ]; then