Initial commit: Shop Database Flask Application

Flask backend with Vue 3 frontend for shop floor machine management.
Includes database schema export for MySQL shopdb_flask database.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

shopdb/utils/__init__.py

@@ -0,0 +1,20 @@
+"""Utility modules."""
+
+from .responses import (
+    api_response,
+    success_response,
+    error_response,
+    paginated_response,
+    ErrorCodes
+)
+from .pagination import get_pagination_params, paginate_query
+
+__all__ = [
+    'api_response',
+    'success_response',
+    'error_response',
+    'paginated_response',
+    'ErrorCodes',
+    'get_pagination_params',
+    'paginate_query'
+]