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

@@ -87,18 +87,24 @@ check_redis || {
     exit 1
 }
 
-# Install Python dependencies
-cd /app/api
-echo "Installing Python dependencies..."
-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
+# Install Python dependencies if not in pre-built image
+if [ "${INSTALL_DEPENDENCIES}" = "true" ]; then
+    cd /app/api
+    echo "Installing Python dependencies..."
+    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 "Using pre-installed dependencies from Docker image"
+    fi
 else
-    echo "Warning: requirements.txt not found in /app/api or /app"
-    # Continue anyway as dependencies might be pre-installed in the image
+    echo "Using pre-installed dependencies from Docker image"
 fi
 
+# Ensure we're in the correct directory for database operations
+cd /app/api
+
 # Initialize database if needed
 if [ ! -f ".db_initialized" ]; then
     echo "Running database migrations..."