Generate mp4 file #126

https://github.com/NetLogo-Mobile/plweb2 is a frontend project UI, while https://github.com/gushishang/pl-discussions-before-2025-12 is a historical data snapshot.Downlode it .

Now I’m asking to use plweb2 to render all the data in the historical snapshot (you’ll need to edit the relevant code) (render discussions in the blackhole, ignore experiments), start a headless browser to take screenshots of the rendered results one by one (PC version), and output: 1, an img.zip containing all images, remember to name the images and add a watermark in the top-right corner showing the capture date and time (referring to the corresponding JSON time); 2, a contents.json including the capture time and image name for all images; 3, an output.mp4, in chronological order, outputting all summary images at 60 frames per second. Please note that rendering is time-consuming, so pay attention to multithreading. ...