feat: add sqlstring and supports-color modules

- Introduced sqlstring module for SQL escape and formatting.
- Added supports-color module to detect terminal color support.
- Created dashboard and login views with Bootstrap styling.
- Implemented user schema in SQL with mock data for testing.

backend/node_modules/dotenv/LICENSE

@@ -0,0 +1,23 @@
+Copyright (c) 2015, Scott Motte
+All rights reserved.
+
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