Crop single image

I just asked ChatGPT to create a script for that, and after some trial and error, it seems to be working... I'm not an expert in scripts, so if there's something that can be improved, please suggest. 

By @TiagoRocha

I added some extras to the code, however, there are arguably better options below:

* Single history step

* Check for selection

* Paste in Place

* Rename the new layer to the original layer name

// Photoshop Script: Copy Selection to New Layer and Delete Original (Preserve Position)

#target photoshop

// Single history stage undo
activeDocument.suspendHistory("Undo script", "main()");

function main() {

    // Selection check
    var theSelection = null;
    try {
        theSelection = activeDocument.selection.bounds;
    } catch (e) {
        alert("The script requires a selection..."); 
    }

        // Global Variables
        var doc = app.activeDocument;
        var origLayer = doc.activeLayer;
        var origLayerName = origLayer.name;

        // Create the new layer via copy + paste in place
        doc.selection.copy();
        var s2t = function (s) { return app.stringIDToTypeID(s); };
        var descriptor = new ActionDescriptor();
        descriptor.putBoolean(s2t("inPlace"), true);
        executeAction(s2t("paste"), descriptor, DialogModes.NO);

        // Delete original layer
        origLayer.remove();

        // Rename new layer to original layer name
        app.activeDocument.activeLayer.name = origLayerName;

}

That being said, a 2-step action or script could be used instead:

1) Convert the masked layer to a Smart Object

2) Rasterize the layer

#target photoshop

// Single history stage undo
activeDocument.suspendHistory("Undo script", "main()");

function main() {

    // Convert to a Smart Object
    executeAction(stringIDToTypeID("newPlacedLayer"), undefined, DialogModes.NO);

    // Rasterize the Smart Object
    executeAction(stringIDToTypeID("rasterizePlaced"), undefined, DialogModes.NO);

}

Or even better, a single-step action or script:

1) Layer > Layer Mask > Apply

#target photoshop

// Apply layer mask
var s2t = function (s) {
	return app.stringIDToTypeID(s);
};
var descriptor = new ActionDescriptor();
var reference = new ActionReference();
reference.putEnumerated( s2t( "channel" ), s2t( "channel" ), s2t( "mask" ));
descriptor.putReference( s2t( "null" ), reference );
descriptor.putBoolean( s2t( "apply" ), true );
executeAction( s2t( "delete" ), descriptor, DialogModes.NO );

Thank you for the reply, and I don't want to sound "rude", but you just pointed out all the obvious things I already now, but didn't answer my questions:
Why would Adobe not include this as a shortcut or a tool? Is there an obvious reason besides "this is how it works since the beginning and they are not willing to change"? I understand the whole "non-destructive" approach, but if that's the case, why give us alternative ways to destructively do it with the Select>Invert>Delete, or even the Eraser tool? So I don't think that the "non-destructive" logic would apply.

Unlinking the mask doesn't do what I would expect, though. If my image is 100px by 100px and I create a mask that's 25px by 25px, and I want to resize the visible portion (masked), how would I do that? When I use the Transform option, it's showing me the whole 100px by 100px boundaries. How can I just resize the 25px by 25px using the Transform tool? This is what frustrates me the most in Photoshop, to be honest. I totally understand that having the option to resize all can and is useful, but isn't it also useful to have a visual cue of what my actual masked section is being resized to?

Also, as I mentioned, the solution you provided isn't perfect. When the image is bigger than the document, using the Select, Invert, Delete, will only delete the visible postion of the image, not what's outside the canvas.

Again, not trying to be rude or anything, I'm just looking for some clarification, without getting answers and "solutions" to things I already know and stated in my post.

Thank you.