enhance system prompt to use the name

self_hosted_env/voice_agent/services/chat_database_service.py

@@ -33,7 +33,7 @@ class ChatDatabaseService:
         with self.conn.cursor(cursor_factory=RealDictCursor) as cur:
             cur.execute(
                 """
-                SELECT student_id, grade, language, nationality 
+                SELECT student_id, student_name, grade, language, nationality 
                 FROM students 
                 WHERE student_id = %s
                 """,
@@ -43,6 +43,7 @@ class ChatDatabaseService:
             if result:
                 return {
                     'student_id': result['student_id'],
+                    'student_name': result['student_name'],  # Added this line
                     'grade': result['grade'],
                     'is_arabic': result['language'],  # Convert language boolean to is_arabic
                     'nationality': result['nationality']