Finished phase005

db/migrate/20260916103647_create_user_sessions.rb

@@ -0,0 +1,13 @@
+class CreateUserSessions < ActiveRecord::Migration[8.1]
+  def change
+    create_table :user_sessions do |t|
+      t.references :user, null: false, foreign_key: true
+      t.string :token_digest, null: false
+      t.datetime :last_used_at
+
+      t.timestamps
+    end
+
+    add_index :user_sessions, :token_digest, unique: true
+  end
+end