add sqlite db

pilot/database/models/user_tasks.py

@@ -1,10 +1,15 @@
 from peewee import *
-
+from database.config import DATABASE_TYPE
 from database.models.components.progress_step import ProgressStep
+from database.models.components.sqlite_middlewares import JSONField
 from playhouse.postgres_ext import BinaryJSONField
 
 
 class UserTasks(ProgressStep):
-    user_tasks = BinaryJSONField()
+    if DATABASE_TYPE == 'postgres':
+        user_tasks = BinaryJSONField()
+    else:
+        user_tasks = JSONField()  # Custom JSON field for SQLite
+
     class Meta:
         db_table = 'user_tasks'