Update UK Biobank variant page URL to pheweb.org/UKB-TOPMed

[Copilot]

UK Biobank variant page URLs have moved from pheweb.sph.umich.edu/SAIGE-UKB to pheweb.org/UKB-TOPMed.

Changes

• Updated createBioBankURL in Variant.tsx to use new URL format
• Updated test expectations to match

// Before
const url = `http://pheweb.sph.umich.edu/SAIGE-UKB/variant/${chr}-${pos}-${ref}-${alt}`

// After  
const url = `https://pheweb.org/UKB-TOPMed/variant/${chr}-${pos}-${ref}-${alt}`

Variant format remains {chr}-{pos}-{ref}-{alt}.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• grch37.rest.ensembl.org
  • Triggering command: /opt/hostedtoolcache/node/24.13.1/x64/bin/node /opt/hostedtoolcache/node/24.13.1/x64/bin/node /home/REDACTED/work/pheweb/pheweb/ui/node_modules/react-scripts/scripts/test.js --testPathPattern=Variant.test.tsx --watchAll=false (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Variant page URL for uk biobank has changed, change to new URL</issue_title>
<issue_description>Change URLS to format https://pheweb.org/UKB-TOPMed/variant/10-112998590-C-T</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Variant page URL for uk biobank has changed, change to new URL #606

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