implement user auth

migrations/003_add_users.sql

@@ -0,0 +1,14 @@
+CREATE TYPE user_role AS ENUM ('regular', 'admin');
+
+CREATE TABLE IF NOT EXISTS users (
+    username VARCHAR(255) NOT NULL PRIMARY KEY,
+    "password" text NOT NULL,
+    user_role user_role NOT NULL DEFAULT 'regular'
+);
+
+CREATE TABLE IF NOT EXISTS user_session (
+    id UUID NOT NULL PRIMARY KEY DEFAULT gen_random_uuid(),
+    token text NOT NULL,
+    "user" varchar(255) NOT NULL,
+    FOREIGN KEY("user") REFERENCES users(username)
+);