Adding authentication flag to sqlserver connector. Also adding consistent indents.

Author: AddisonRogers

package.json

@@ -22,6 +22,7 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
+    "@azure/identity": "^4.8.0",
     "@modelcontextprotocol/sdk": "^1.6.1",
     "better-sqlite3": "^11.9.0",
     "dotenv": "^16.4.7",