feat: full redy blog and admin panel

backend/internal/storage/migrations.go

@@ -6,7 +6,8 @@ CREATE TABLE IF NOT EXISTS posts(
 	title TEXT NOT NULL,
 	published BOOLEAN DEFAULT 0,
 	content TEXT NOT NULL,
-	CREATED_AT DATETIME DEFAULT CURRENT_TIMESTAMP
+	CREATED_AT DATETIME DEFAULT CURRENT_TIMESTAMP,
+	updated_at DATETIME
 );
 
 CREATE TABLE IF NOT EXISTS users(