Fix: pages/ → views/ to prevent Streamlit multi-page auto-routing

app.py

@@ -12,9 +12,9 @@ from db import (
 from config import APP_CSS, MAX_STUDENT_NAME_LEN
 from utils import get_client_ip, get_kst_now_str, log_audit
 from validators import normalize_user_text, validate_opinion_content, validate_student_name
-from pages.home import render_home_page
-from pages.lobby import render_lobby_page
-from pages.admin import render_admin_page
+from views.home import render_home_page
+from views.lobby import render_lobby_page
+from views.admin import render_admin_page
 from components.sidebar import render_sidebar
 from components.chat_board import render_chat_board
 from components.teacher_dashboard import render_teacher_dashboard