[Feature] Large downloads silently time out and fail after a few minutes

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request. • Yes The feature My family is migrating to Immich, but we've hit a roadblock with large bulk downloads (>4GB) via the web UI. After a certain time the download silently times out and fails ("Websocket Disconnect"). I've read similar issues (such as #8872 regarding proxy timeouts and #21490 regarding browser fetch limits): The core problem seems to be that streaming massive ZIP files over a single HTTP connection inevitably hits standard reverse proxy or browser timeout limits. While workarounds like tweaking proxy configurations or using CLI tools (immich-go) exist, these are simply not viable for my non-technical family members who just need a reliable "Download" button in the UI. Proposed Solutions: • Sequential UI Downloads: Allow the web/desktop app to queue and download files sequentially in the background (bring…