fix: add WAL mode for session SQLite to prevent 'database is locked', persist active account tab in localStorage

webui_server.py

@@ -37,6 +37,7 @@ from health import health_payload
 from scraper_jobs import ScraperJobService
 from telethon import TelegramClient
 from telethon.errors import SessionPasswordNeededError
+from telegram_scraper_with_forwarding import _ensure_session_wal
 
 
 BASE_DIR = Path(__file__).resolve().parent
@@ -462,6 +463,7 @@ class TelegramAuthManager:
         if not api_id or not api_hash:
             raise RuntimeError("Save api_id and api_hash first for this account.")
         if account_id not in self.clients or self.clients[account_id] is None:
+            _ensure_session_wal(account_session_path(SESSION_DIR, account_id))
             self.clients[account_id] = TelegramClient(
                 account_session_path(SESSION_DIR, account_id),
                 api_id,