I found the fault.
you have to rename your shaderfile, it can not be called glass.shader as there is a file called this in urt already.
I would reccomand you prefix all your shaders files, texture folders and other assets you make with your name(quick_glass.shader).
The reason the shader dosent work is that it is now overritten by the glass.shader that is in the game.
Renaming the shaderfile should solov the problem.
ps. you need to add shaderfiles in your pk3. no need for the shaderlist.txt tought
I hope that soloved it