[Bug]: createMap does not accept add-on URIs

[Tdue21]

Describe the Bug

It is not possible to use the new createMap function with an image from an add-on.
When I attempt to use the function with e.g. these parameters:

[h:lobbyImage = "lib://net.dovesoft.trinity-continuum/images/LobbyBackground.png"]
[h: lobbyId = createMap("01. Lobby", 
    json.set("{}",
        "player visible", json.true,
        "vision type", "Off",
        "vision distance", 1000,
        "lighting style", "OVERTOP",
        "has fog", json.false,
        "ai rounding", "None",
        "map asset", lobbyImage
    )
)]

I get the following exception:

20:41:53.233 DEBUG net.rptools.maptool.client.MapToolLineParser - net.rptools.parser.ParserException: createMap: "lib://net.dovesoft.trinity-continuum/images/StoryGuideScreen.png" is not a valid asset ID or URL
20:41:53.233 ERROR net.rptools.maptool.client.swing.MapToolEventQueue - java.util.concurrent.CompletionException: net.rptools.parser.ParserException: createMap: "lib://net.dovesoft.trinity-continuum/images/LobbyBackground.png" is not a valid asset ID or URL
java.util.concurrent.CompletionException: net.rptools.parser.ParserException: createMap: "lib://net.dovesoft.trinity-continuum/images/LobbyBackground.png" is not a valid asset ID or URL
    at net.rptools.maptool.model.library.addon.AddOnLibrary.lambda$callMTSFunction$15(AddOnLibrary.java:653) ~[MapTool.jar:1.14.3]
    at java.awt.event.InvocationEvent.dispatch(Unknown Source) [?:?]
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source) [?:?]

The image url is known to work, as I have tested it with [h:broadcast("<img src='" + lobbyImage + "'></img>")], which showed the image nicely in the chat window.

To Reproduce

1. Create an add-on
2. Add an image in the public folder and an onInit.mts file to the mtscript folder.
3. In the onInit.mts add this:

[h:lobbyImage = "lib://test-library-namespace/LobbyBackground.png"]
[h: lobbyId = createMap("01. Lobby", 
    json.set("{}",
        "player visible", json.true,
        "vision type", "Off",
        "vision distance", 1000,
        "lighting style", "OVERTOP",
        "has fog", json.false,
        "ai rounding", "None",
        "map asset", lobbyImage
    )
)]

Where the lobbyImage variable points to the correct image with the correct namespace.
4. Import the add-on
5. Observe the exception.

Expected Behaviour

I expect the lib:// URI to be treated exactly as an asset:// URI. Even more so, as the ´createMap` function is so newly added.

Screenshots

No response

MapTool Info

1.14.3

Desktop

Windows 11

Additional Context

No response

[bubblobill]

Looks like multiple places in the code might suffer from hard coded assetId instead of URIs.