ITR model update code

AppCode/Config.py

@@ -0,0 +1,21 @@
+import mysql.connector
+import os
+
+class DBConfig:
+    # Database credentials (can also be read from environment variables)
+    MYSQL_HOST = os.getenv("MYSQL_HOST", "127.0.0.1")
+    MYSQL_USER = os.getenv("MYSQL_USER", "root")
+    MYSQL_PASSWORD = os.getenv("MYSQL_PASSWORD", "root")
+    MYSQL_DB = os.getenv("MYSQL_DB", "income_tax")
+
+    @staticmethod
+    def get_db_connection():
+        """
+        Returns a MySQL connection object.
+        """
+        return mysql.connector.connect(
+            host=DBConfig.MYSQL_HOST,
+            user=DBConfig.MYSQL_USER,
+            password=DBConfig.MYSQL_PASSWORD,
+            database=DBConfig.MYSQL_DB
+        )