[Port dspace-7_x] Remove reliance on `Host` HTTP Header#5288

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tdonohue wants to merge 3 commits intoDSpace:dspace-7_xfrom

tdonohue:port_5276_to_7_x

Commits on Mar 13, 2026

Ensure we are no longer using/trusting "Host" HTTP Header. Require setting existing environment.ui.baseUrl. Replace ServerHardRedirectService.getCurrentOrigin() with getBaseUrl() to read this setting.
tdonohue
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Update Docker Compose production script to specify UI's baseUrl as localhost:4000. Override that default in several GitHub CI tasks as 127.0.0.1:4000 is required there.
tdonohue
committed
Fix issue where ui.baseUrl cannot be overridden in environment variables because it's not listed in default-app-config.ts
tdonohue
committed