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Regressions after Extension API refactor: redirects broken, header ordering wrong, TLS options ignored…

Regressions after Extension API refactor: redirects broken, header ordering wrong, TLS options ignored…: a task in LegoFlow-SWE (Harbor dataset). After the recent Extension API refactoring, several critical functionalities are broken or missing. The Extension type is supposed to provide a typed…

The task

After the recent Extension API refactoring, several critical functionalities are broken or missing. The `Extension` type is supposed to provide a typed attachment mechanism for request/response pipelines, but the changes have inadvertently broken:

Part of Lego-X/LegoFlow-SWE.