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/mysql2/lib/constants/session_track.js

@@ -0,0 +1,11 @@
+'use strict';
+
+exports.SYSTEM_VARIABLES = 0;
+exports.SCHEMA = 1;
+exports.STATE_CHANGE = 2;
+exports.STATE_GTIDS = 3;
+exports.TRANSACTION_CHARACTERISTICS = 4;
+exports.TRANSACTION_STATE = 5;
+
+exports.FIRST_KEY = exports.SYSTEM_VARIABLES;
+exports.LAST_KEY = exports.TRANSACTION_STATE;