Optimize and refactor latest changes

migrations/0028.sql

@@ -1,2 +1,13 @@
 ALTER TABLE habits_log
-ADD done_by_user_id
+ADD done_by_user_id;
+
+DROP TABLE api_keys;
+
+CREATE TABLE api_keys (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	api_key TEXT NOT NULL UNIQUE,
+	user_id INTEGER NOT NULL,
+	expires DATETIME,
+	last_used DATETIME,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+);