Fixed name mismatches and missing feature flag

migrations/20260422094717_user_table.sql

@@ -1,8 +1,8 @@
 CREATE TABLE users (
     id SMALLINT GENERATED ALWAYS AS IDENTITY PRIMARY KEY,
-    name VARCHAR(30),
-    firstname VARCHAR(30),
+    last_name VARCHAR(30),
+    first_name VARCHAR(30),
     username VARCHAR(30),
-    passwd TEXT,
+    pwd TEXT,
     is_admin BOOLEAN NOT NULL DEFAULT false
 );