Add routing-url header support for Happ client #327
Description
Happ support a routing-url response header that instructs the client to fetch an external routing rules file alongside the subscription. Currently, PasarGuard does not populate this header, so users must configure routing manually inside each client.
Since announce and announce-url — which are also Happ/v2RayTun-exclusive headers — are already implemented, the plumbing for client-aware header injection exists. This feature request asks to extend that pattern to routing-url.