several changes:

* api calls for auth

* exchange now bind to user

backend/utils/db_mirgration.py

@@ -0,0 +1,13 @@
+import sys
+from pathlib import Path
+
+from sqlmodel import create_engine
+
+project_parent = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(project_parent))
+
+import settings  # noqa: E402
+from trading_journal import db_migration  # noqa: E402
+
+db_engine = create_engine(settings.settings.database_url, echo=True)
+db_migration.run_migrations(db_engine)