Add npm/yarn/pnpm individual cache cleaning

[momenbasel]

Currently user cache cleaning includes npm/pip/yarn caches as part of the general user cache scan.

Break these out into their own category or sub-items so developers can selectively clean:

• npm cache (~/.npm/_cacache)
• yarn cache (~/Library/Caches/Yarn)
• pnpm store (~/Library/pnpm/store)
• pip cache (~/Library/Caches/pip)
• Cargo cache (~/.cargo/registry/cache)
• Go module cache (~/go/pkg/mod/cache)

Each should show individual sizes and allow selective cleanup.