dnehar/Lifespan_project — reverse-engineered prompt

I want this turned into a clean, runnable research project for the lifespan immune atlas study. Please use the scripts and data that are already here to make it easy to reproduce the main analysis, especially the cell atlas views, age related immune changes, enrichment results, and figure outputs from the paper. If some parts depend on outside data or are too heavy to fully rerun, make the project still work with the included processed files and clearly wire up the pieces that can be reproduced now.

Also make a simple interactive explorer, like the Shiny app mentioned in the readme, where someone can browse UMAPs, cell types, age groups, and a few key infant versus lifespan signatures from the processed data. I would love one obvious entry point, clear setup instructions, and sensible defaults so a new person can run it without digging through notebooks. If you need to, look up current docs online and fill in any missing glue code, but keep it faithful to what this repository is meant to do.