Any smart lock will have the ability to be opened remotely. That is the smart part. But some will be only via their cloud app. Ideally you probably want a local solution. If so, avoid any WiFi options.
There are plenty of non-smart electronic locks that allow you to have a wired remote release.
I’ve had a Trilogy T3 in my house for 2 decades. It is a keypad lock, not smart. But it has a remote release wire that I connected to a smart relay. This allows me to open my door remotely without having to trust that some lock company got their digital security right when eve big tech companies fail.
I really doubt party lights are going to be more of a deterrent than bright flood lights.
Keep it simple. Just install bright motion lights somewhere appropriate. Add a camera for a little more teeth.
You could do something with WLED and strip lights. But it sounds like you want a solution and not a project with indefinite completion date.