[Feature Request] For IDE versions 2025.1+, the ability for both the AI Assistant & Junie to index external libraries/dependencies

Codeium (now WindSurf), in their legacy plugin, was able to index all types of external library files (whether they were in archives, JAR/ZIP/etc. or stored as literal code on the standard file system), as well as automatically indexing the entire project + all dependencies for context. Their newer agent (Cascade) doesn't seem to be able to actually do this. 

This brings me to the feature request at hand: It'd be pretty huge if the Jetbrains AI Assistant + Junie could auto-index all files (with configurability, such as the max amount of files to index [or no limit], etc.) since it would allow for them to provide much more relevant/accurate information instead of relying on trained data for anything it can't actually index. I'm aware that I can manually add files as context from external deps, but this only works for the AI assistant (Junie doesn't seem to be able to actually read the files even if they are added explicitly as context) and is especially tedious for tasks that require broader context.

The only current workaround I can personally think of is to use MCP + my own local model trained on whatever I need it trained on, but since this'd vary from workspace to workspace, I'd be consuming more time doing this compared to any benefit I could possibly net from doing so.