HTTP_PROXY, HTTPS_PROXY, and NO_PROXY are now collected in their own named set (qL5) alongside the existing named env-var groups (e.g., VERTEX_REGION_CLAUDE_ prefixes). This allows these proxy variables to be handled consistently in env-var passthrough and filtering logic elsewhere in the codebase.
Evidence
qL5 = new Set(["HTTP_PROXY", "HTTPS_PROXY", "NO_PROXY"]) added to env-var constant initialization (search for "HTTP_PROXY" near "HTTPS_PROXY")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.