feat: user CRUD

db/schema initialization.sql

@@ -1,6 +1,8 @@
 CREATE TABLE IF NOT EXISTS ordr_user (
     id SERIAL NOT NULL PRIMARY KEY,
-    active BOOLEAN NOT NULL DEFAULT FALSE,
+    sub_id TEXT UNIQUE NOT NULL,
+    user_name TEXT NOT NULL,
+    active BOOLEAN NOT NULL DEFAULT TRUE,
     is_admin BOOLEAN NOT NULL DEFAULT FALSE
 );