fix: add missing logging configuration to alembic.ini to prevent KeyError formatters

backend/alembic.ini

@@ -4,3 +4,38 @@ script_location = alembic
 # URL is overridden at runtime by alembic/env.py using get_settings().DATABASE_URL
 # Do NOT hardcode credentials here — this file is committed to git
 sqlalchemy.url = sqlite+aiosqlite:////data/db.sqlite
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S