add sessions

sqlite/schema.sql

@@ -123,3 +123,11 @@ CREATE TABLE IF NOT EXISTS client_approvals (
     ,FOREIGN KEY (user_id) REFERENCES users (id)
     ,FOREIGN KEY (client_id) REFERENCES clients (id)
 );
+
+CREATE TABLE IF NOT EXISTS sessions (
+    id TEXT PRIMARY KEY
+    ,user_id TEXT NOT NULL
+    ,created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+    ,expires_at DATETIME NOT NULL
+    ,FOREIGN KEY (user_id) REFERENCES user (id)
+);