new frontend that relies on raw.jsonl and compile_directory.json

[yushangdi]

How to use the new font-end:

# Step 0, this only need to be done once if you don't update the front-end. This produce an html file. 
# The `vite-plugin-singlefile` inlines all JavaScript and CSS into the single `dist/index.html` file. You don't need any other files from the build output.
# optionally, do  NOMINIFY=1 npm run build to get a readable javascript in the html file, but the file size will be 3x larger. 
cd fontend && npm run build    

# Step 1 
cargo run -- <log_file> -o tl_out --no-browser

# Step 2. This script populate the viewer html with raw.jsonl and compile_directory.json, so you can directly open the html without starting a server
./scripts/make_viewer.sh tl_out

# Now you can open viewer.html and browse. 

If you only want to change the front-end, no need to update the rust package. You can just do:

cd fontend && npm run build    
./scripts/make_viewer.sh tl_out

Screen.Recording.2026-02-09.at.5.18.10.PM.mov