Now only the generate/video submit uses proxy.url; cookie-exchange/login, token refresh, credit-balance and project/session bootstrap all go direct. Also splits adobe GenerateVideo (submit=proxy, poll/download=local). Verified live: adobe gpt 1K cookie-exchange via local IP, submit 23.244.30.102 (proxy) vs local 76.209.9.65, 2.0MB PNG. Build+vet pass.